| 单词 | blowpipe |
| 例句 | Coaxing a fresh blaze with a blowpipe, he found tongs and with them held a portion of the collar carefully to the blast, his corded, brown old back gleaming with the heat. The Golden Goblet 1961-04-24T00:00:00Z Once clasping the familiar shape of the blowpipe, Ranofer’s hands steadied and so did his nerves. The Golden Goblet 1961-04-24T00:00:00Z On a low stool before one of them sat Rekh the goldsmith, using a pointed blowpipe to direct the heat onto a golden ornament he held carefully in copper tongs. The Golden Goblet 1961-04-24T00:00:00Z At once Ranofer removed it to the stone block, dropped the blowpipe and seized the mallet instead. The Golden Goblet 1961-04-24T00:00:00Z They received help and shelter from a local tribe, the Dayaks, who still hunted with blowpipes. BBC Election 70 2010-10-09T05:45:00Z Using blowpipes, it was argued, helps keep alive the knowledge of where to find plants that furnish the best wood for them, the poisons that are its best ammunition, and antidotes in case of accidents. Reporter tells of colliding cultures, old and new 2011-03-21T12:21:16Z The casing was the perfect shape to turn into an Amazonian blowpipe for spitting wet paper at your enemies. Philip Hensher: Why handwriting matters 2012-10-06T23:05:27Z Elders told Linden they kept blowpipes for hunting; guns cost too much. Reporter tells of colliding cultures, old and new 2011-03-21T12:21:16Z “Andy Warhol used urine on copper in his ‘Oxidation’ paintings, while in 1929 Paul Klee used a blowpipe technique, similar to that used in ancient cave paintings.” Spray Paintings by Jean-Michel Basquiat, Paul Klee, and Others at Gagosian London 2015-06-11T04:00:00Z As a boy he was fascinated by his grandmother's stories of the family's history - adventures involving swords, blowpipes and far-off lands. How a flood led family to discover slavery link 2023-07-06T04:00:00Z One, the blowpipe hypothesis, maintains that bony parts of the fish’s mouth clap together into a tube shape through which the water spurts out like peas through a straw. Inner ‘blowpipe’ explains how archerfish spit water with such deadly force 2022-03-22T04:00:00Z The Korubo tribe was said to be proudly traditional, hunting with blowpipes and wooden clubs and living their lives largely in the nude. Brazilian agency reaches isolated indigenous group to reunite them with relatives, ease tensions, officials say 2019-04-07T04:00:00Z The Korubo are a proud and warlike tribe who hunt with blowpipes and long wooden clubs. Brazil: high-risk expedition to contact isolated tribe declared success 2019-04-05T04:00:00Z Molten glass slowly ballooning from the tip of a blowpipe. Opinion | Finding What’s ‘Oddly Satisfying’ on the Internet 2019-02-22T05:00:00Z Other than their blowpipes, stuff meant almost nothing to them. Review | Two Westerners in search of art and adventure in Borneo 2018-03-08T05:00:00Z A study published today in Integrative Organismal Biology comes down on the side of the blowpipe. Inner ‘blowpipe’ explains how archerfish spit water with such deadly force 2022-03-22T04:00:00Z One man was a Swiss environmental activist who wore a loincloth and learned to hunt with a blowpipe before mysteriously disappearing in Sarawak. Two Men Set Out To Find Borneo’s Jungle Tribes. One Never Came Back. 2018-03-10T05:00:00Z The staff’s hunting tools are blowpipes or guns armed with dart syringes filled with anesthetic drugs. Canine shelter takes on Tehran stray dog problem — humanely 2017-03-15T04:00:00Z For the sake of his triple-decker life, Sherry went everywhere the globe-trotting novelist had been, exposing himself to every blowpipe and mosquito-loud interior. Francis Bacon: creating order from chaos 2016-06-24T04:00:00Z He uses African black wood for the tenor and bass drones, the chanter and the blowpipe, each trimmed with sterling silver or nickel. Students learn from Scottish bagpiper at Delafield academy 2015-04-27T04:00:00Z Only standard-length blowpipes are allowed, but over the years many people have shifted away from the traditional plastic tube, opting to mould their own from carbon fibre. Peashooters blow for 'world' title 2013-07-13T04:39:24Z "These games are a way of preserving our culture," said Olga Bastos, an indigenous leader, who also competed in the bow and arrow and blowpipe events. Amazon's Olympic athletes aim for faster, stronger, deadlier 2013-04-05T16:28:39Z This accounts for the rapidity of heating by a blowpipe flame, which is not due to any great increase in temperature of the flame as compared with a Bunsen. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z It reeks of new paint and varnish and furniture-polish and the plumbers' blowpipes. Mushroom Town 2012-04-21T02:00:25.923Z They were all armed with blowpipes, but they made no hostile movement; they just stood staring at me with their mad eyes, speechless and looking more afraid than I was. Treasure of Kings Being the Story of the Discovery of the \\"Big Fish,\\" or the Quest of the Greater Treasure of the Incas of Peru. 2012-04-09T02:00:30.007Z It is a weapon much used by certain Indians of America and the West Indies; Ð called also blowpipe, and blowtube. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z The sealing may be done with a blowpipe, by simply holding the ends in a flame, or by means of sealing-wax or some similar substance. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z A heavy plumber's soldering iron, or even a tinman's bit, is not well adapted for this purpose, and the blowpipe is even worse, as the great heat melts and spoils the gutta-percha covering. Electric Bells and All About Them A Practical Book for Practical Men 2012-03-06T03:00:25.273Z A quantity of the soft glass is collected or gathered on the end of a blowpipe, and the workman then blows into it, and distends it into a globular form. British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. 2012-02-26T03:00:18.883Z Somebody knocked out some keys with a sledge, and the blowpipe fell on the curved bar, making the holders of it grunt. Steel The Diary of a Furnace Worker 2012-02-21T03:00:18.360Z The common mouth blowpipe is a tapering tube with a very small orifice at the end to be inserted in the flame. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z The mineral is infusible before the blowpipe, and is not decomposed by acids. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" 2012-01-31T03:00:17.257Z Oxyhy′drogen, pertaining to a mixture of oxygen and hydrogen, as in a form of blowpipe in which jets of either ignite as they issue from separate reservoirs. Chambers's Twentieth Century Dictionary (part 3 of 4: N-R) 2012-01-30T03:00:13.887Z The workman then moulds the opening made by detaching the blowpipe, in order to do which, he has to apply the glass often to the mouth of the furnace, to soften it. British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. 2012-02-26T03:00:18.883Z When the wood was arranged,—a three-days' job,—the crane brought us some barrels of petrol, and we poured about half a one in each blowpipe hole. Steel The Diary of a Furnace Worker 2012-02-21T03:00:18.360Z I fused the gold on a lump of charcoal with an alcohol blowpipe. Scientific American, Vol. XXXVII.?No. 2. [New Series.], July 14, 1877 A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures 2012-01-05T03:00:29.743Z By means of a special blowpipe, wherein an excess of oxygen is introduced at the hot point, hard steel plates can be cut to pieces almost as easily as a grocer cuts cheese. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z Into the lower part of the upright tube the nozzle of an air-pipe is inserted, through which a supply of air can be injected, under pressure, into the burner, after the manner of a blowpipe. Gas Burners Old and New 2011-11-07T02:00:20.003Z When the cylinder has assumed the exact shape desired, he places his thumb on the end of the blowpipe, and holds the opposite end of the cylinder in the mouth of the furnace. British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. 2012-02-26T03:00:18.883Z Below the scaffold, we spent half a day arranging kindling, with shavings placed at each blowpipe hole. Steel The Diary of a Furnace Worker 2012-02-21T03:00:18.360Z The support is a small cylinder of alumina placed in the axis of the blowpipe. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z The blowpipe is a brass tube about a foot or eighteen inches long, with two passages in it, one for the oxygen and the other for the other gas. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z They are intended for use at the extreme temperatures obtainable in steel furnaces, or for the melting of platinum before the oxy-hydrogen blowpipe. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z The glass is next detached from the blowpipe, and its ends removed, and it is then annealed for a short time, and cut down lengthways internally by a diamond. British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. 2012-02-26T03:00:18.883Z Alan, who seldom talked of an idea until he had tried it out, betook himself to a corner and began doing odd things with his blowpipe. In the Days of the Guild 2011-08-03T02:00:12.687Z It is very finely powdered and fed in through the blowpipe orifice, whence it is blown in a highly heated condition into the zone of fusion. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z The shell of the stems is used for making gutters, timber for flooring and wharf material, stems for blowpipes for poisonous arrows. The Palm Tree Blessing 2011-07-11T02:00:05.463Z It was in vain that I represented that I had no blowpipe or other necessary apparatus for the purpose. Scenes and Andventures in the Semi-Alpine Region of the Ozark Mountains of Missouri and Arkansas 2011-07-10T02:00:18.883Z The glass near the blowpipe, while hot, is touched with a cold instrument, and immediately cracks around its neck, detaching the blowpipe from the mass. British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. 2012-02-26T03:00:18.883Z The second interview was not less curious than the first: the colonel found his neighbour busily at work with a glass spinner's lamp and a blowpipe, making glass beads. Travels in the Steppes of the Caspian Sea, the Crimea, the Caucasus, &c. 2011-06-25T02:00:14.203Z I recognised my handkerchief, and felt, as I picked the parcel up from the floor, that the lamp, blowpipe, and materials for making the ring had been sent after me. Latitude 19 degree A Romance of the West Indies in the Year of Our Lord Eighteen Hundred and Twenty 2011-05-30T02:00:18.047Z When Monsieur Roger judged that there no longer remained any air in the tube, he begged Monsieur Dalize to hand him the blowpipe. In Search of a Son 2011-05-24T02:00:13.087Z I therefore contrived to make a blowpipe by cutting several small pieces of cane, and fitting one into the other until the aperture was drawn down to the required degree of fineness. Scenes and Andventures in the Semi-Alpine Region of the Ozark Mountains of Missouri and Arkansas 2011-07-10T02:00:18.883Z A sheet glass blower must be very strong, and have great skill in handling his blowpipe, for the cylinders which he blows are frequently sixty inches long, and their weight is very considerable. British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. 2012-02-26T03:00:18.883Z The trees also supply materials for the blowpipes the Huaorani use to hunt. In pictures 2011-04-06T23:02:22Z The flame just described is essentially that of a blowpipe. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 4 "Finland" to "Fleury, Andre" 2011-03-20T02:00:30.697Z The Doctor had just blown into the blowpipe, and laid it aside. Withered Leaves. Vol. II. (of III) A Novel 2011-02-25T03:01:17.540Z I was trailing a squirrel and crouched to shoot it with my blowpipe when I saw the tiger. Wife with soup ladle foils tiger attack on husband 2011-02-14T09:52:51Z The joining was done in the next room, where the flames of the blowpipes darted and hissed and little clouds of metallic vapour shot sparks into the air. The Song of Songs 2011-01-01T03:00:25.907Z The bow is unknown, but its place among some tribes is partly supplied by the blowpipe, in the boring of which they show great skill. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z He wore the same loose, many-folded gown, reaching just to his knees, and carried a bow, arrows, and a long blowpipe, but he was wanting in his friends’ plumpness and breadth of shoulder. Real Gold A Story of Adventure Next fix the skin on the fine end of the blowpipe, by thrusting the point of the latter into the opening, and allowing the spring to press gently on its edge. Butterflies and Moths (British) When heated before the blowpipe, the mineral exfoliates, owing to loss of water, and on this account was named apophyllite by R.J. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" To heat the steel to the required temperature, he used a bamboo blowpipe, with his lungs for bellows. Into the Primitive Various materials are used as supports for substances in the blowpipe flame; the principal are charcoal, platinum and glass or porcelain. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" “And suppose they shoot at us,” whispered Perry, “with an arrow or blowpipe?” Real Gold A Story of Adventure If you find the slightest difficulty in detaching the skin of a valuable specimen, it is far better to damage the blowpipe than to risk spoiling the skin. Butterflies and Moths (British) A young girl will stand up at the blackboard, and draw and explain the compound blowpipe, and describe all the process of making oxygen and hydrogen. The Atlantic Monthly, Volume 16, No. 98, December, 1865 Baldwin brought a bottle of fixative and sprayed the drawing through a blowpipe. Ewing\\'s Lady For the applications of the blowpipe in chemical analysis see Chemistry: Analytical. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" One of the best and least expensive forms of blowpipe is shown in Fig. The Elements of Blowpipe Analysis The first of these is a suitable glass blowpipe, one form of which is here illustrated. Butterflies and Moths (British) All are useful, and all have their special applications, but, for the present, we will consider the ordinary types of bellows and blowpipes, such as one usually finds in a chemical or physical laboratory. A Handbook of Laboratory Glass-Blowing I suppose the infernal regions alone could produce such sounds of soul-splitting stridency as those evolved by my next-door neighbour’s blowpipes when it got to that.” In the Whirl of the Rising The blowpipe has been in common use from the earliest times for soldering metals and working glass, but its introduction into systematic chemical analysis is to be ascribed to A.F. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" The blowpipe enables us to get an oxidizing and a reducing flame of better form and greater power. The Elements of Blowpipe Analysis The front of the larva is generally the last portion to become dry, and when this is quite rigid the skin may be removed from the blowpipe. Butterflies and Moths (British) All the work described in this book can quite well be done with a simple foot bellows and a quick-change blowpipe. A Handbook of Laboratory Glass-Blowing The favourite ‘native’ manner of using the hellish thing is by means of a thorn and a blowpipe. Cleek of Scotland Yard Detective Stories The first work on this application of the blowpipe was by G. v. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" In order to examine a substance before the blowpipe to determine the presence or absence of certain elements, it becomes necessary to arrange a systematic method. The Elements of Blowpipe Analysis Then, after softening the glass blowpipe in a gas flame or the flame of a spirit lamp, it can be drawn out thin again for future work. Butterflies and Moths (British) They also supply "hard" or "combustion" glass, but this is only used for special purposes, as it is too infusible for convenient working in the ordinary blowpipe flame. A Handbook of Laboratory Glass-Blowing You bore a hole in the side of the egg, put in a blowpipe with a rubber bulb, and force the contents into a frying-pan. Grenfell: Knight-Errant of the North In blowpipe work only two of these four parts are made use of, viz. the pale envelope, for oxidation, and the luminous portion, for reduction. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" Examination on Charcoal with Na2CO3.—Metallic compounds are often difficult to reduce with the blowpipe flame alone, and hence no bead is obtained. The Elements of Blowpipe Analysis Then taking a poisoned arrow from his quiver, he puts it in the blowpipe, and collects his breath for the fatal puff. Wanderings in South America We will assume that the student has adjusted the blowpipe to give a flame similar to that shown in d, Fig. A Handbook of Laboratory Glass-Blowing The name is from the Latin vermiculor, “to breed worms,” because when heated before the blowpipe these minerals exfoliate into long worm-like threads. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" To obtain a good oxidizing flame, the blowpipe is held with its nozzle inserted in the edge of the flame close over the level of the wick, and blown into gently and evenly. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" A young girl will stand up at the blackboard, and draw and explain the compound blowpipe, and describe all the processes of making oxygen and hydrogen. Household Papers and Stories The Indian, on his return home, carefully suspends his blowpipe from the top of his spiral roof; seldom placing it in an oblique position, lest it should receive a cast. Wanderings in South America Now bring the tube into the blowpipe flame gradually, and rotate it, while heating, at the place where it is to be closed. A Handbook of Laboratory Glass-Blowing They used cutlasses; large and broad daggers, of excellent quality, with sharp edges; and long blowpipes, through which they discharged arrows dipped in poison. The Philippine Islands, 1493-1898 - Volume 40 of 55 1690-1691 Explorations by Early Navigators, Descriptions of the Islands and Their Peoples, Their History and Records of the Catholic Missions, as Related in Contemporaneous Books and Manuscripts, Showing the Political, Economic, Commercial and Religious Conditions of Those Islands from Their Earliest Relations with European Nations to the Close of the Nineteenth Century Hence most blowpipes are now made with a cavity for retaining the moisture. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" Blow through a blowpipe against the different rows of holes while the disk is being whirled. Common Science Here let the blowpipe remain suspended, while you take a view of the arms which are made to slay the larger beasts of the forest. Wanderings in South America Large or thin-walled tubing should be heated in the blowpipe flame and a slight bend made; another zone of the tube, just touching the first bend, should now be heated and another slight bend made. A Handbook of Laboratory Glass-Blowing These blowpipes are sometimes used also as lances, having the iron fastened at one side, so that, if the shot is not accurate, they use it alternately as a lance. The Philippine Islands, 1493-1898 - Volume 40 of 55 1690-1691 Explorations by Early Navigators, Descriptions of the Islands and Their Peoples, Their History and Records of the Catholic Missions, as Related in Contemporaneous Books and Manuscripts, Showing the Political, Economic, Commercial and Religious Conditions of Those Islands from Their Earliest Relations with European Nations to the Close of the Nineteenth Century In the same way as the aborigenes of Australia throw their boomerang with inimitable dexterity and security, the Sakai manages his blowpipe with a cleverness it is impossible to imitate or learn. My Friends the Savages Notes and Observations of a Perak settler (Malay Peninsula) As is well known, the rough material is formed in boules or pear-shaped drops under an inverted blowpipe. A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public Only one of our men had been wounded,—he by an arrow from a blowpipe. Tales of the Malayan Coast From Penang to the Philippines A final shaping of the bend may be made by heating in a large blowpipe flame and expanding slightly by air pressure. A Handbook of Laboratory Glass-Blowing Somerville used to analyze minerals with the blowpipe, which I never did. Personal Recollections, from Early Life to Old Age, of Mary Somerville The same designs are repeated on the ear-rings, blowpipes and quivers. My Friends the Savages Notes and Observations of a Perak settler (Malay Peninsula) Seal the open mouth of each tube in the blowpipe flame and label. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. I took the queer-colored piece of coal, and began heating it under the blowpipe. Montezuma's Castle and Other Weird Tales Then, while the rounded edges of the burst-out portion are still soft, insert the other tube; rotate the join in the blowpipe flame until it is quite soft, and expand by blowing. A Handbook of Laboratory Glass-Blowing They were armed with the usual parang, blowpipe, and shield. Borneo and the Indian Archipelago with drawings of costume and scenery They make blowpipes, arrows and quivers from bamboo, strings from twisted vegetable fibres, ear-rings and ornamental combs for the women. My Friends the Savages Notes and Observations of a Perak settler (Malay Peninsula) Pipette off the clear serum, and fill in quantities of 1 c.c., into small glass ampoules or pipettes, and hermetically seal in the blowpipe flame, care being taken to avoid scorching the serum. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. We heard the blow, but could not get a glimpse of the blowpipe. A Pirate of Parts Reheat again until the liquid rises to the top of the tube, then seal by means of the blowpipe flame. A Handbook of Laboratory Glass-Blowing Dan contended that the poor fellow is carrying around his own little blowpipe hell as he goes through life. In Our Town A young man procuring food with his blowpipe. p. My Friends the Savages Notes and Observations of a Perak settler (Malay Peninsula) Before disconnecting the apparatus, seal the glass tube from the culture vessel at the constriction, using the blowpipe flame. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. A A are pieces of watch spring tied on the thick part of the blowpipe, and holding the caterpillar by pressure on the last segments when the point B is inserted. Practical Taxidermy A manual of instruction to the amateur in collecting, preserving, and setting up natural history specimens of all kinds. To which is added a chapter upon the pictorial arrangement of museums. With additional instructions in modelling and artistic taxidermy. It is an advantage to flatten the brass tube somewhat and to file the flattened end to a slope which corresponds with the angle at which the blowpipe jet enters the burner. A Handbook of Laboratory Glass-Blowing Its name is given in consequence of being used by the Indians in making arrows for their blowpipes. The Western World Picturesque Sketches of Nature and Natural History in North and South America With his blowpipe ready the Sakai penetrates into the forest, creeping softly among the tall grasses and bushes. My Friends the Savages Notes and Observations of a Perak settler (Malay Peninsula) Seal both ends of each pipette in the blowpipe flame. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The blowpipe is of great service for collecting warblers and other small birds. Practical Taxidermy A manual of instruction to the amateur in collecting, preserving, and setting up natural history specimens of all kinds. To which is added a chapter upon the pictorial arrangement of museums. With additional instructions in modelling and artistic taxidermy. It is important to bear in mind that the cheeks, not the lungs, form the reservoir for air used in maintaining the blowpipe flame. A Handbook of Laboratory Glass-Blowing To that gentleman we are indebted for the compound blowpipe, which produces a very intense heat by the combustion of hydrogen in contact with oxygen gas. James Cutbush An American Chemist, 1788-1823 Very slowly and quietly the Sakai crouches down, lifts his blowpipe and fixing his eyes upon the black mark he has made at the end of the cane, he takes a long and steady aim. My Friends the Savages Notes and Observations of a Perak settler (Malay Peninsula) Dip the capsule into a beaker containing thin celloidin, beyond the junction with the glass and after removal rotate it in front of the blowpipe air blast to dry it evenly. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Rowland Ward, also, in his "Sportsman's Handbook," appears to favour the use of the blowpipe, and very correctly says at page 9: Practical Taxidermy A manual of instruction to the amateur in collecting, preserving, and setting up natural history specimens of all kinds. To which is added a chapter upon the pictorial arrangement of museums. With additional instructions in modelling and artistic taxidermy. A small jet, such as that commonly used on a mouth blowpipe, will with care give a pointed and quiet flame, having an appearance similar to that shown in the illustration. A Handbook of Laboratory Glass-Blowing They will shoot their arrows for him with unerring aim and send the poisoned dart, from the blowpipe, true to its destination. The World's Greatest Books — Volume 19 — Travel and Adventure It is limited to some rough designs and still more rough incisions on the blowpipes, quivers and the women's combs and their earrings. My Friends the Savages Notes and Observations of a Perak settler (Malay Peninsula) Attach each pipette in turn to the rubber tube of the foot bellows, or blowpipe air-blast, and blow air through the pipette until the interior is dry. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. How to solder, either by the blowpipe or by the "bit," is now and then useful knowledge. Practical Taxidermy A manual of instruction to the amateur in collecting, preserving, and setting up natural history specimens of all kinds. To which is added a chapter upon the pictorial arrangement of museums. With additional instructions in modelling and artistic taxidermy. The blowpipe jets, of which there may be several with advantage, may be made of glass tubing, bent to the most convenient angle and having an enlargement or bulb at some point in the tube. A Handbook of Laboratory Glass-Blowing Their blowpipes hung from the roof of the hut, carefully suspended by a silk grass cord. The World's Greatest Books — Volume 19 — Travel and Adventure If the enamoured swain can manage his blowpipe ably enough to procure animal food for his wife their amorous desires are at once contented. My Friends the Savages Notes and Observations of a Perak settler (Malay Peninsula) For real convenience of work the blowpipe should be mounted on a special table connected up with cylindrical bellows operated by a pedal. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. He took a straw," said Gail, "and used it as a sort of blowpipe. Long Ago, Far Away The whole device, blowing tube, reservoir, and T piece may be fastened to a clamp, so that it can be secured on the edge of any table where blowpipe work is to be carried out. A Handbook of Laboratory Glass-Blowing If the object is of considerable size it is most conveniently heated on the forge; if small the blowpipe is more convenient. On Laboratory Arts Several of the men had little blowpipes, through which they released a shower of darts. Divinity These are made by taking 14-cm. lengths of stout glass tubing of the requisite diameter and heating the centre in the Bunsen or blowpipe flame. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. In another minute it flared as if under a blowpipe, and soon a fierce sheet of flame came bursting through the roof. Crowded Out o' Crofield or, The Boy who made his Way Paraffin Wax.—Where there is no coal gas available and the blowpipe is only required at intervals, and especially where high portability is required, there are few fuels so convenient as paraffin wax. A Handbook of Laboratory Glass-Blowing A brush flame from the larger gas tube of the single blowpipe table is most suitable for the work of bending the tubes. On Laboratory Arts He has an enormous conscience, linked with an insatiate desire to put the whole universe under a blowpipe, and then weigh up the residue. The Brentons “Suppose they possess the deadly blowpipe, with its little poisoned darts, they may attack us without giving us a chance of reaching them,” said Arthur. The Wanderers Adventures in the Wilds of Trinidad and Orinoco “No, sir, bows and arrows some of ’em, but mostly blowpipes.” Rob Harlow's Adventures A Story of the Grand Chaco Combustion-Glass.—This may be worked more easily if a small percentage of oxygen is introduced into the air with which the blowpipe flame is produced. A Handbook of Laboratory Glass-Blowing A small blowpipe, such as is generally found in laboratories, does more harm than good, either by burning the end of the file or raising it to an insufficient temperature. On Laboratory Arts From above his lecture notes and his blowpipes, he kept keen eyes upon the members of his classes. The Brentons He told us that the native, when he wishes to catch one alive, goes forth with his blowpipe and arrows tipped with diluted woorali poison. The Wanderers Adventures in the Wilds of Trinidad and Orinoco Those lads of mine would soon make blowpipes and arrows, and knock you a few down, or I could if you wanted ’em, with one of your guns.” Rob Harlow's Adventures A Story of the Grand Chaco The ordinary soda-glass tubing melts easily in the blowpipe flame, it has not a long intermediate or viscous stage during fusion, but becomes highly fluid rather suddenly; it does not blacken in the reducing flame. A Handbook of Laboratory Glass-Blowing Taking up a long paddle and an even longer blowpipe, he skimmed the melt to a dazzlingly bright surface and deftly formed a bubble. Spacehounds of IPC For this purpose they are produced by blowing into a small luminous Bunsen flame from one side through a blowpipe. An Elementary Study of Chemistry Wait till I can make my blowpipe and some poison, and then I will bring you as many creatures as you may wish for. The Wanderers Adventures in the Wilds of Trinidad and Orinoco “No, spears and blowpipes, through which they send poisoned arrows.” Rob Harlow's Adventures A Story of the Grand Chaco Such a glass is not very suitable for use with the blowpipe owing to the difficulty experienced in obtaining a sufficiently high temperature. A Handbook of Laboratory Glass-Blowing "I just love to talk at you when you've got your mouth full of a blowpipe." Spacehounds of IPC This differs from the oxyhydrogen blowpipe only in the size of the tubes. An Elementary Study of Chemistry Ah, the blowpipe is a wonderful instrument; it will serve to kill anything, from a big tapir or a fierce jaguar or puma, down to the smallest manakin or humming-bird.” The Wanderers Adventures in the Wilds of Trinidad and Orinoco But you were talking about the Indians and their blowpipes. Rob Harlow's Adventures A Story of the Grand Chaco If, however, a certain amount of oxygen is mixed with the air used in producing the blowpipe flame this difficulty is minimised. A Handbook of Laboratory Glass-Blowing He waited, tense, the hair at the back of his neck stiffening as he thought of blowpipes and of darts poisoned by steeping in the putrid entrails of wild hogs. Terry A Tale of the Hill People When heated with the blowpipe on charcoal, bismuth gives a coating of the oxide Bi2O3. An Elementary Study of Chemistry “Kallolo has undertaken to supply us, if he can find time to form a blowpipe; it will be wise, I think, to allow him to do so before he attempts to execute any other work.” The Wanderers Adventures in the Wilds of Trinidad and Orinoco I don’t mind the blowpipes; it’s the arrows.” Rob Harlow's Adventures A Story of the Grand Chaco As a rule it is harder than ordinary soda-glass, and less suitable for working in the blowpipe flame. A Handbook of Laboratory Glass-Blowing The most refractory metallic and mineral substances yielded to the intense heat produced by the flame of the blowpipe. Continental Monthly , Vol. 6, No. 1, July, 1864 Devoted to Literature and National Policy. When heated on charcoal with the blowpipe it is converted into an oxide which volatilizes, leaving the charcoal unstained by any oxide coating. An Elementary Study of Chemistry I will search also for the ingredients for the poison, without which the blowpipe would be of little use. The Wanderers Adventures in the Wilds of Trinidad and Orinoco A glass rod is exposed at one end to a blowpipe flame. The Adventures of Uncle Jeremiah and Family at the Great Fair Their Observations and Triumphs A support for such a blowpipe may be cut out of a piece of brass or tin-plate, and should be fastened to a small, flat, wooden board. A Handbook of Laboratory Glass-Blowing The chief articles manufactured by them are cotton goods and blowpipes. The Andes and the Amazon Across the Continent of South America When heated on charcoal with the blowpipe it is oxidized and forms a coating of antimony oxide on the charcoal which has a characteristic bluish-white color. An Elementary Study of Chemistry Kallolo, who had started as he intended at daybreak, returned in the evening with the materials for his blowpipe, and the ingredients for manufacturing the woorali poison. The Wanderers Adventures in the Wilds of Trinidad and Orinoco Some of her sentences on this point seem burned into the page, as by the flame of a blowpipe. The Friendships of Women When he has mastered this, the student may practise the same operation, but with the blowpipe. A Handbook of Laboratory Glass-Blowing He looked vaguely about for something that Thornton might smoke, then seated himself on a cluttered bench holding a number of retorts, beside which flamed an oxyacetylene blowpipe. The Man Who Rocked the Earth It melts in the oxyhydrogen blowpipe and in the electric furnace; it is harder than gold and is a good conductor of electricity. An Elementary Study of Chemistry Kallolo having finished his blowpipe hung it up carefully by one end, as should it become in the slightest degree bent, it would be, he explained, completely spoiled. The Wanderers Adventures in the Wilds of Trinidad and Orinoco The chemist who confines his studies exclusively within his own province, when he reflects on the probable sequence of life, will speculatively see himself vanish in his blowpipes and retorts. The Destiny of the Soul A Critical History of the Doctrine of a Future Life The apparatus consists of a tube through which air is blown from the mouth, a valve through which the air passes into an expanding reservoir, and a blowpipe jet in communication with the reservoir. A Handbook of Laboratory Glass-Blowing Thornton, with a slight moral hesitation, did as he was told, and Bennie, whistling, picked up the oxyacetylene blowpipe, regarding it somewhat as a dog fancier might gaze at an exceptionally fine pup. The Man Who Rocked the Earth While the temperature of the flame is not so high as that of the oxyhydrogen blowpipe, it nevertheless suffices for most chemical operations carried out in the laboratory. An Elementary Study of Chemistry As soon as he had formed an arrow he put it into the blowpipe, and aimed at an unfortunate parrot perched on a tree fifty yards off. The Wanderers Adventures in the Wilds of Trinidad and Orinoco They are not dissipated by heat, and give a violet colour to the deoxidizing flame of the blowpipe. Aids to Forensic Medicine and Toxicology If the blowpipe is to be used with gas, the form of burner described under. A Handbook of Laboratory Glass-Blowing Filtered off and ignited, it assumes, after treatment with nitrate of cobalt before the blowpipe, a blue colour which is characteristic. A Text-book of Assaying: For the Use of Those Connected with Mines. Why is oxygen passed through the inner tube of the oxyhydrogen blowpipe rather than the outer? An Elementary Study of Chemistry He was well-satisfied with his performance, and pronounced his blowpipe a certain killer. The Wanderers Adventures in the Wilds of Trinidad and Orinoco Tests.—Alkaline reaction, effervesces and evolves carbonic acid when treated with an acid; crystallizes, gives yellow tinge to blowpipe flame. Aids to Forensic Medicine and Toxicology In the case of a blowpipe burning oil or wax fuel the flame may be a trifle more ragged without disadvantage. A Handbook of Laboratory Glass-Blowing Tungsten.—The ammonic carbonate filtrate from the silica is evaporated to dryness, ignited strongly over the blowpipe, and weighed. A Text-book of Assaying: For the Use of Those Connected with Mines. In order to produce the maximum heat, the hydrogen and oxygen must be admitted to the blowpipe in the exact proportion in which they combine, viz., An Elementary Study of Chemistry “Why, we shall all be poisoned if you use it,” said the captain, starting back with dismay; “you had better go without your blowpipe than allow that to happen.” The Wanderers Adventures in the Wilds of Trinidad and Orinoco I have never seen any 'decorative work on a blowpipe. The Manóbos of Mindanáo Memoirs of the National Academy of Sciences, Volume XXIII, First Memoir The usual, or Herepath, type of gas blowpipe consists of an outer tube through which coal gas can be passed and an inner tube through which a stream of air may be blown. A Handbook of Laboratory Glass-Blowing Where the precipitate is small, it is better to ignite strongly over the blowpipe, and weigh directly as lime. A Text-book of Assaying: For the Use of Those Connected with Mines. The oxyhydrogen blowpipe, used to effect this combination, consists of a small tube placed within a larger one, as shown in Fig. An Elementary Study of Chemistry Meantime Kallolo had brought down three of its companions with his deadly blowpipe. The Wanderers Adventures in the Wilds of Trinidad and Orinoco One interesting trait of this particular group is the use of blowpipes for killing small birds. The Manóbos of Mindanáo Memoirs of the National Academy of Sciences, Volume XXIII, First Memoir Such a blowpipe is shown in section by Fig. A Handbook of Laboratory Glass-Blowing Draw out the tube before the blowpipe to the shape shown in fig. A Text-book of Assaying: For the Use of Those Connected with Mines. In the more tropical forest regions the blowpipe constituted one of the most formidable weapons. South America “We have lost the bird, but we will try to find something instead,” said Kallolo, giving me his blowpipe and bow to hold. The Wanderers Adventures in the Wilds of Trinidad and Orinoco By producing a hotter flame by means of the blowpipe, in which hydrogen and oxygen are consumed, the piece of lime was raised to a higher temperature and a more intense light was obtained. Artificial Light Its Influence upon Civilization The final closure is made by melting the drawn-out extension in the blowpipe flame; the finished seal being shown by g, Fig. A Handbook of Laboratory Glass-Blowing It is fused in a Berlin crucible with five times its weight of potassic cyanide at a moderately high temperature in a muffle, or over the blowpipe. A Text-book of Assaying: For the Use of Those Connected with Mines. A garden set in a cut between hills that form a natural blowpipe can at best do no more than hold its own, without advancing. The Garden, You, and I With bows and blowpipes in hand, Arthur, Tim, and I, and the three Indians, crept silently towards them, when, to our great astonishment, we discovered the cause of the hubbub. The Wanderers Adventures in the Wilds of Trinidad and Orinoco As there was no coal to be had in the town, he made the doughnuts with the aid of a plumber's blowpipe. The New Frontiers of Freedom from the Alps to the Ægean This mass of glass should now be rotated in the blowpipe flame until it is quite soft and on the point of running together. A Handbook of Laboratory Glass-Blowing It is used in testing for metallic oxides and silica before the blowpipe. A Text-book of Assaying: For the Use of Those Connected with Mines. Such armament could never have been meant merely to impel Kultur on the poor, harmless blacks with their blowpipes and bows and arrows. "Over There" with the Australians Kallolo’s blowpipe could have brought him down from his lofty perch; but it would have been at the risk of preparing him for parrot-pie, and our object was to take him alive. The Wanderers Adventures in the Wilds of Trinidad and Orinoco When burned with pure oxygen instead of air it gives the hottest of chemical flames, hotter even than the oxy-hydrogen blowpipe. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries In order to blow bulbs large enough to make a useful condenser, it will be convenient to employ the multiple-jet blowpipe described on page 4. A Handbook of Laboratory Glass-Blowing The distillate is evaporated in the crucible ignited over the blowpipe, cooled in the desiccator for ten minutes and weighed. A Text-book of Assaying: For the Use of Those Connected with Mines. A mixture of oxygen and hydrogen when ignited constitutes the hydrogen blowpipe, invented by Dr. Hare of Philadelphia. A Catechism of Familiar Things; Their History, and the Events Which Led to Their Discovery. With a Short Explanation of Some of the Principal Natural Phenomena. For the Use of Schools and Families. Enlarged and Revised Edition. Kallolo merely took his blowpipe; and giving a peculiar smile, he observed,—“If the creatures will kindly come near me, I will take good care that not one of them gets away.” The Wanderers Adventures in the Wilds of Trinidad and Orinoco It is combined with oxygen in the oxy-hydrogen blowpipe to produce heat. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries The thermometer is filled and the top of the capillary tube closed by the use of a small blowpipe flame. A Handbook of Laboratory Glass-Blowing Combined Water, &c.—Weigh up 1 gram of the substance, and ignite over the blowpipe for some time in a platinum-crucible, cool in a desiccator, and weigh. A Text-book of Assaying: For the Use of Those Connected with Mines. I have seen some very satisfactory analyses made on board ship by a skillful use of the blowpipe, where liquid reagents would be very inconvenient to employ. Scientific American Supplement, No. 623, December 10, 1887 As the gale gave no signs of abating, our three Indians swam on shore, Kallolo with his blowpipe, and the other two with their bows, to kill some game. The Wanderers Adventures in the Wilds of Trinidad and Orinoco The Schoop metallizing process has recently been improved by the use of the electric current instead of the blowpipe for melting the metal. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Outside the furnace revolves a huge machine with ten arms, each of which carries its own mold and blowpipe. How To Write Special Feature Articles A Handbook for Reporters, Correspondents and Free-Lance Writers Who Desire to Contribute to Popular Magazines and Magazine Sections of Newspapers The residue is ignited over the blowpipe, a fragment of ammonic carbonate being added towards the end, when fumes of sulphuric acid cease to be evolved. A Text-book of Assaying: For the Use of Those Connected with Mines. There was more danger in either of these than with our blowpipe device, and no better results were obtained, though the cost was greater. Scientific American Supplement, No. 623, December 10, 1887 Kallolo, indeed, understood how to make the celebrated zabatana, or blowpipe, though he had not been able to obtain the wood he required. The Wanderers Adventures in the Wilds of Trinidad and Orinoco It is to Hare also that we owe the invention in 1801 of the oxy-hydrogen blowpipe, which nowadays is used with acetylene as well as hydrogen. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries After passing a current of the gas through the tube for some time, the end was sealed in the blowpipe flame. Scientific American Supplement, No. 794, March 21, 1891 The crucible with the mixture is heated at first gently over a Bunsen and afterwards more strongly in an oxidising atmosphere in a muffle or over the blowpipe. A Text-book of Assaying: For the Use of Those Connected with Mines. Go to TOC In blowpipe experiments, it rarely occurs that we have to deal with pure metals, which, if not absolutely non-volatile, are recognized by the incrustation they form upon charcoal. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations He hoped, however, when we reached the shore, to obtain the necessary ingredients, and to form a blowpipe, with which he promised to kill as much game as we should require. The Wanderers Adventures in the Wilds of Trinidad and Orinoco Finally the oxyhydrogen blowpipe, which is indispensable for the treatment of very refractory metals, consumes large quantities of hydrogen and oxygen. Scientific American Supplement No. 819, September 12, 1891 On raising the temperature of the points e by a blowpipe, the discharge was rendered still more free, and decomposition took place instantly. Experimental Researches in Electricity, Volume 1 Good Heavens!" he exclaimed, "these are poisoned arrows shot through a blowpipe. The Wings of the Morning As it is not possible to detect potassa compounds with unerring certainty by the blowpipe flame, the the wet method should be resorted to for the purpose of confirming it. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations In the assembling of these parts a blowpipe spirit lamp or a little "Tinol" soldering lamp will prove very helpful. Things To Make The candle itself is now made to light up the dark places of nature; the blowpipe and the prism are adding to our knowledge of the earth's crust; but the torch must come first. The Chemical History of a Candle Whether the application of heat were by a flame applied underneath, or one directed by a blowpipe from above, or by a hot iron or coal, the effect was the same. Experimental Researches in Electricity, Volume 1 "I fancy that further practice with blowpipes will be at a discount on Rainbow Island," he cried cheerfully. The Wings of the Morning The greater part of the metals fuse when submitted to the heat of the blowpipe, and if exposed to the outer flame, they oxidize. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Soldering the disc to the spindle is most easily effected with a blowpipe or small blow-lamp. Things To Make Now, Deville's process depends upon three points,—upon intense heat, blowpipe action, and the volatility of certain metals. The Chemical History of a Candle Others, which had been heated more powerfully by the blowpipe, acted afterwards on the gases, though not so powerfully as the former. Experimental Researches in Electricity, Volume 1 One floats and wavers like a spineless ribbon of seaweed in the water; another burns with a steady radiance; a third blares from its fissure like a flame driven by the blowpipe. At a Winter's Fire These at once lead into the special analysis of all those substances susceptible of examination by the blowpipe. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The blowpipe and the poison arrow are most dangerous. The Boy With the U.S. Census You see we have, therefore, heat enough in the candle, as in the voltaic battery, or in the highly-exalted combustion of the blowpipe, but we do not supply a continuous source of heat. The Chemical History of a Candle It was withdrawn at the pneumatic trough from the gas through the water, heated red-hot by the spirit-lamp and blowpipe, and then returned when cold into the same portion of gas. Experimental Researches in Electricity, Volume 1 In this way, it is possible to use the blowpipe steadily, and not intermittently, as is necessary if the lungs alone are the "bellows." The Boy Mechanic: Volume 1 700 Things for Boys to Do Ammonia.—The salts of ammonia, when heated before the blowpipe, and just upon the point of disappearing, impart to the flame a feeble though dark green color. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Then they lifted the blowpipe and blew again, sharp and hard, forcing the soft glass to its proper form. The Boy With the U.S. Census He puts the blowpipes through these apertures, and sends down these gases upon the metals, which are gradually melted. The Chemical History of a Candle T. FLETCHER.—Placing of lights.—Best burners.—Light lost by shades.—Use of the blowpipe.—Gas furnaces.—Gas engines. Scientific American Supplement, No. 481, March 21, 1885 Push the cork into the bowl of the pipe and the blowpipe is ready for use. The Boy Mechanic: Volume 1 700 Things for Boys to Do Nearly all the ores of copper and its salts, give a bright green color to the blowpipe flame. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The now cooling glass was broken from the end of the blowpipe with a sharp, snapping sound, and the blowpipe was plunged in the furnace again for another bottle. The Boy With the U.S. Census The volatility of gold and silver is the same thing, whether it be effected by the voltaic battery or by the blowpipe. The Chemical History of a Candle In this case the blowpipe is simply fixed with the nozzle six inches above the coke, and the flame directed downward. Scientific American Supplement, No. 481, March 21, 1885 Then procure a tin blowpipe and blow the flame against the metal at the point to be bent. The Boy Mechanic: Volume 1 700 Things for Boys to Do If the sublimate found upon the charcoal in the first experiment be submitted to the blowpipe flame, the green color of tellurium is produced while the sublimate is volatilized. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations One who is curious in such things may make glass out of a straw, by burning it and heating the ashes with a blowpipe. The Atlantic Monthly, Volume 04, No. 21, July, 1859 It is all very well for me to take a piece of antimony, and fuse it in the flame of a blowpipe. The Chemical History of a Candle Of all the tools in a workshop, nothing saves more time and worry than two or three sizes of good blowpipes and an efficient blower. Scientific American Supplement, No. 481, March 21, 1885 A small fragment examined under the microscope appeared, from the number of minute entangled air or perhaps steam bubbles, like an assay fused before the blowpipe. The Voyage of the Beagle They cannot be reduced to the metallic state before the blowpipe. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations On postmortem examination an opening in the heart was found large enough to admit a blowpipe. Anomalies and Curiosities of Medicine But observe, I cannot raise any vapour: it is now covered with a coat of melted oxide, and unless I have a great power in my blowpipe, it is hardly possible to break through it. The Chemical History of a Candle Things which need a blowpipe are usually most awkward to do without one; and men will go fiddling about and tumbling over each other without seeing really what they intend to do. Scientific American Supplement, No. 481, March 21, 1885 It is a powerful flux, and is used as a substitute for borax as a blowpipe reagent in testing for the metallic oxides. The Gutenberg Webster's Unabridged Dictionary Section M, N, and O These two portions of the flame—the oxidizing and the reducing—are the principal agents of blowpipe analysis. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations With respect to the latter, I constructed a very handy and effective blowpipe apparatus, consisting of a small air force-pump, connected with a cylindrical vessel of tin plate. James Nasmyth: Engineer; an autobiography I have here also one of the blowpipes used by Deville in his process for working platinum in the way I have spoken of. The Chemical History of a Candle It will, perhaps, be new to many of you that blowpipes can easily be made in a form which admits of any special shape of flame being produced. Scientific American Supplement, No. 481, March 21, 1885 When acetylene was first introduced on a commercial scale attempts were made to utilize its great heat of combustion by using it in conjunction with oxygen in the oxyhydrogen blowpipe. The Project Gutenberg Encyclopedia Volume 1 of 28 Having effected this much, he may introduce the mouthpiece of the blowpipe between his lips. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Every grain of deposit contains at least 7-10 its weight of gold, easily discoverable by the blowpipe. American Hand Book of the Daguerreotype The open end of the tube is then to be sealed before the blowpipe. The Chemical History of a Candle I have here an example of a straight-line blowpipe made for heating wire passed along it at a high speed. Scientific American Supplement, No. 481, March 21, 1885 I've many more besides; I make 'em into darts and shoot 'em through a blowpipe—a trick I larned o' the Indians. Martin Conisby's Vengeance To avoid this, the top of the tube must be supplied with a mouthpiece of ivory or horn C. The blowpipe here represented is the one used by Ghan, and approved by Berzelius. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It gelatinizes on boiling with acid, and a fragment may be readily fused in the blowpipe flame, yielding a transparent globule. Scientific American Supplement, No. 344, August 5, 1882 It will serve two purposes—shewing you what the blowpipe does as a source of heat, and what it does by sending that heat where it is wanted. The Chemical History of a Candle In a small private workshop, with the assistance of gas furnaces, blowpipes, and other gas heating appliances, it is a very easy matter to carry out important experiments privately on a practical scale. Scientific American Supplement, No. 481, March 21, 1885 A very pretty experiment may be made on these plants with the blowpipe. Reminiscences of Samuel Taylor Coleridge and Robert Southey A chemist can, with a blowpipe and a piece of charcoal, determine many substances without any reagents, thus enabling him, even when travelling, to make useful investigations with means which are always at his disposal. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations After a long boiling with nitric acid it gelatinizes, but it foams up and fuses to a transparent glass before the blowpipe. Scientific American Supplement, No. 344, August 5, 1882 You will have little difficulty in learning to shoot well, as your eye is already trained by the use of your blowpipe. By Sheer Pluck, a Tale of the Ashanti War The thousands of uses to which blowpipes are adapted are so well known, that they need no mention, except the curiously ignored fact that the power of any blowpipe depends on the air pressure. Scientific American Supplement, No. 430, March 29, 1884 Before the blowpipe it intumesces and melts to a glassy globule coloring the flame green, and forms a jelly when boiled with the acids. Scientific American Supplement, No. 363, December 16, 1882 There are pocket blowpipes as portable as a pencil case, such as Wollaston's and Mitscherlich's; these are objectionable for continued use as their construction requires the use of a metallic mouthpiece. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations This is readily found, but is no distinction; its reaction before the blowpipe, however, is characteristic, it readily fusing to a transparent globule, clear and glassy, and by forming a jelly when heated with acids. Scientific American Supplement, No. 344, August 5, 1882 In certain cases it is found economical to raise the metal to dull redness by other means, say with a portable forge of the usual description, or with a blowpipe consuming coal-gas and air. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power A complete reversal of this law is shown in that ruling the construction of blowpipes, which I have already given in a previous paper on 'The Use and Construction of the Blowpipe.' Scientific American Supplement, No. 430, March 29, 1884 It dissolves in acids like malachite, but without effervescence, if it be freed from that mineral, and acts the same before the blowpipe. Scientific American Supplement, No. 363, December 16, 1882 The length of the blowpipe is generally seven or eight inches, but this depends very much upon the visual angle of the operators. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations This last test will seldom be necessary, however, and may be dispensed with if the hardness and blowpipe reactions may be ascertained. Scientific American Supplement, No. 344, August 5, 1882 The blowpipe must be designed so that it remains sufficiently cool to prevent polymerisation of the acetylene and deposition of the resultant particles of carbon or soot within it. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power You see its power when I place a bundle of iron wire in the flame; it is, in fact, a concentration of hundreds or thousands of powerful blowpipe flames in one mass. Scientific American Supplement, No. 430, March 29, 1884 Chrysocolla is characterized by its low specific gravity, light color, lack of fibrous structure, blowpipe reactions, and the acid. Scientific American Supplement, No. 363, December 16, 1882 To produce an efficient flame of oxidation, put the point of the blowpipe into the flame about one third the diameter of the wick, and about one twelfth of an inch above it. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Its hardness is generally fully 5, the specific gravity between 2.4 and 2.5; it is difficult to fuse before the blowpipe, but is finally fused into an opaque globule. Scientific American Supplement, No. 344, August 5, 1882 The generator must be of a type which affords as little after-generation as possible, and should not need recharging while the blowpipe is in use. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The best way to do this is to use a number of blowpipe flames directed downward. Scientific American Supplement, No. 430, March 29, 1884 Its characteristics are: first, its burning to quicklime before the blowpipe, distinguishing it from pure magnesite; second, its slow effervescence in acids. Scientific American Supplement, No. 363, December 16, 1882 The substance to be examined must be put in the tube near one end, and exposed to the flame of the blowpipe. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The heat is applied to the mineral by means of a candle and blowpipe. Scientific American Supplement, No. 344, August 5, 1882 There are other forms of low- pressure blowpipe besides the Fouché, in some of which the oxygen also is supplied at low pressure. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power A blowpipe may also be used with good effect, as shown in the above engraving, and in many cases it is preferable and much easier to manage. Scientific American Supplement, No. 430, March 29, 1884 Before the blowpipe it is infusible, but if powdered, it slowly dissolves in the molten borax bead and yields a beautiful green globule. Scientific American Supplement, No. 363, December 16, 1882 But in many cases it melts too freely, and therefore it is better to mix it, for blowpipe analysis, with an equal quantity of soda. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations A thick wax candle answers well, and an ordinary japanned tin blowpipe, costing twenty cents, will serve the purpose. Scientific American Supplement, No. 344, August 5, 1882 There should be a main tap on the pipe between the generator and the blowpipe. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power In this angle, underneath, is directed a very fine blowpipe flame on one spot, and the hands are passed singly over this spot until the color comes, when they are instantly pushed over the edge. Scientific American Supplement, No. 430, March 29, 1884 The specific gravity of the mineral is 2.6, and it has a hardness of 6 before the blowpipe. Scientific American Supplement, No. 363, December 16, 1882 The following minerals fuse on the edges alone, when heated in the blowpipe flame: 1. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Datholite may generally be distinguished by the form of its crystals and their glassy appearance, with great hardness, and by tingeing the flame from the blowpipe of a true green color. Scientific American Supplement, No. 344, August 5, 1882 The temperature given by this apparatus exceeds that of the familiar oxy- hydrogen blowpipe, because the actual combustible material is carbon instead of hydrogen. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Egyptian paintings show the goldsmiths at work with blowpipe and forceps, fashioning bracelets, rings, and diadems, inlaying objects of stone and wood, or covering their surfaces with fine gold leaf. Early European History Before the blowpipe on a piece of wood charcoal it gives off fumes of sulphur, fuses, boils, and finally leaves a globule of copper. Scientific American Supplement, No. 363, December 16, 1882 Dr. Black's blowpipe is as good an instrument and cheaper. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It is very fragile and brittle, however, and is never perfectly transparent, but quite opaque; its specific gravity is 2.9, and it is readily fused before the blowpipe after intumescing. Scientific American Supplement, No. 344, August 5, 1882 The matter, however, was not pursued, as the blowpipe fed with undiluted acetylene took its place. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The goldsmith blows merrily all day through his little blowpipe, but it is gold he is working on. The Romance of Zion Chapel [3d ed.] Before the blowpipe it is infusible, and not reduced to quicklime, which distinguishes it from dolomite, which it frequently resembles in the latter's massive form, common here in veins. Scientific American Supplement, No. 363, December 16, 1882 The Blast of Air.—By using the blowpipe for chemical purposes, the effect intended to be produced is an uninterrupted steady stream of air for many minutes together, if necessary, without an instant's cessation. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It gelatinizes by boiling with acid, and after intumescing before the blowpipe, fuses to a frothy mass. Scientific American Supplement, No. 344, August 5, 1882 The second apparatus constructed by Fouché was the high-pressure blowpipe, the theoretical aspect of which has already been studied. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power "As I walked around the room I noticed jars, bottles, tubes, lamps, retorts, blowpipes, batteries----" "Did you notice a small, shiny machine that somewhat resembles the interior economy of a watch?" The Green Mouse It decrepitates before the blowpipe, but when fused with some borax in a small hollow on a piece of wood charcoal, gives a globule of copper. Scientific American Supplement, No. 363, December 16, 1882 In order to produce such a flame, hold the point of the blowpipe higher above the wick, while the nozzle must not enter the flame so far as in the production of the oxidation flame. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It intumesces and readily fuses before the blowpipe, and dissolves in acid without gelatinizing. Scientific American Supplement, No. 344, August 5, 1882 Though—er—I think the shell was blown through the blowpipe to clear the deadly fumes from the room by its explosion, before any one else should suffer. Average Jones I applied the blowpipe to some black pumice-stone from the volcano of the isle of Bourbon, which, on the slightest contact with the flame, whitened and melted into an enamel. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 It resembles somewhat the red oxide, but the low gravity, inferior hardness, lighter color, and blowpipe reaction distinguish it. Scientific American Supplement, No. 363, December 16, 1882 The point of the blowpipe should only touch the flame, while the current of air blown into it must be stronger than into the oxidation flame. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Stilbite is characterized by its form, difficult gelatinizing, and intumescence before the blowpipe; from natrolite as mentioned under that species. Scientific American Supplement, No. 344, August 5, 1882 These preparations having been made, the Professor's next move was to apply a blowpipe to some of the metal from the pulverized ore, thus forming a small yellow button. The Pony Rider Boys in the Rockies Or, the Secret of the Lost Claim "An oxyacetylene blowpipe," he muttered back feverishly working. The Exploits of Elaine Malachite is characterized by its color from Copper Glance and Red Oxide and Erubescite, and from Chrysocolla by the action of the acid, the fibrous structure and blowpipe reaction, gravity, and hardness. Scientific American Supplement, No. 363, December 16, 1882 COMBUSTION.—Any flame of sufficient size can be used for blowpipe operations. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It was none of the old-time gambling places, like Danfield's, with its steel door which Craig had once cut through with an oxyacetylene blowpipe in order to rescue a young spendthrift from himself. The War Terror Platinum, alumina, and rock crystal, it is true, cannot be liquified by the most intense heat of our furnaces, but they melt like wax before the flame of the oxy-hydrogen blowpipe. Familiar Letters on Chemistry It is not only proof against explosives, but between the plates is a lining that is proof against thermit and even that oxy-acetylene blowpipe by which you rescued me from the old boiler. The Exploits of Elaine If Colonel Burton's blowpipes and retorts and his conduct in private usually kept Mrs. Burton on tenterhooks, she was no less uneasy on his account when they went into society. The Life of Sir Richard Burton This lamp is generally resorted to by blowpipe analysts, for the purpose of experiments in glass apparatus, as the oily combustibles will coat the glass with soot. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations But there is no hole," objected Kennedy, "not a trace of the use of thermit to burn the way in or of the oxyacetylene blowpipe to cut a piece out. The War Terror The muzzles of the blowpipes are 3 inches in diameter. On the Economy of Machinery and Manufactures Armed with his hammer, his steel pointer, his magnetic needles, his blowpipe, and his bottle of nitric acid, he was a powerful man of science. A Journey to the Interior of the Earth For hard glass—Bohemian—or large tubes, the blast-lamp or blowpipe is needed. An Introduction to Chemical Science A small cheap set of magnifying glasses are all that is required for the purpose of blowpipe analysis, Fig. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations He might have used thermit or an oxyacetylene blowpipe for all I would care. The War Terror A small cylindrical rod of coloured glass is heated in the flame of a blowpipe, until the extremity becomes soft. On the Economy of Machinery and Manufactures Most silver ores are easily recognisable, and readily tested by means of the blowpipe or simple fire assay. Getting Gold: a practical treatise for prospectors, miners and students It is soft and can be scratched by a quill; under the blowpipe swells greatly and becomes scaly, then fuses easily into a black magnetic bead. Geological Observations on South America The number of reagents employed in blowpipe analysis is not great, and therefore we shall here give a brief description of their preparation and use. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Some of the peoples are expert in the use of the blowpipe and poisoned dart. The Pagan Tribes of Borneo When a small fragment is heated in the blowpipe, the black specks are easily fused into black brilliant beads, which become magnetic,—characters that apply to no common mineral except hornblende or augite. Volcanic Islands Two little boys were very expert with the blowpipe, and brought me a good many small birds, which they shot with pellets of clay. The Malay Archipelago, the land of the orang-utan and the bird of paradise; a narrative of travel, with studies of man and nature — Volume 1 Gives me his blowpipe for his little son. The Silent Bullet Glass Tubes.—For the separation and recognition of volatile substances before the blowpipe flame, we use glass tubes. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations They carry with them a supply of rice, salt, and tobacco, cooking-pots and matches, a change of raiment, spears, swords, shields, blowpipes, and perhaps two or three dogs. The Pagan Tribes of Borneo This substance is of a reddish- brown colour, with an almost metallic lustre; it is not magnetic, but becomes so after having been heated under the blowpipe, by which it is blackened and partly fused. Volcanic Islands The success of the whole business depended on the fact that brass filings, which bear a strong external resemblance to gold dust, are dissipated in the strong heat of the blowpipe. The Lock and Key Library The Most Interesting Stories of All Nations: North Europe — Russian — Swedish — Danish — Hungarian They were armed with blowpipes and quivers full of poisoned darts made of thin charred pieces of bamboo tipped with this stuff. The Silent Bullet Platinum Forceps or Tongs.—We frequently are necessitated to examine small splinters of metals or minerals directly in the blowpipe flame. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations A flux of borax and a blowpipe secure it to its place. Forty Centuries of Ink or, a chronological narrative concerning ink and its backgrounds, introducing incidental observations and deductions, parallels of time and color phenomena, bibliography, chemistry, poetical effusions, citations, anecdotes and curiosa together with some evidence respecting the evanescent character of most inks of to-day and an epitome of chemico-legal ink. Part of the same grain under the blowpipe would in some instances behave like olivine, its colour being only slightly changed, and part would give a black magnetic bead. Volcanic Islands In the recesses of the thickets demons lurked, and wild Caaguas, who with a blowpipe and a poisoned arrow slew you and your horse, themselves unseen. A Vanished Arcadia: being some account of the Jesuits in Paraguay 1607-1767 Infantry marched, some of them armed with swords and spears, though these I took to be an ornamental bodyguard, and others with tubes like savage blowpipes of which I could not guess the use. When the World Shook; being an account of the great adventure of Bastin, Bickley and Arbuthnot The flame of oxidation will again convert this oxide into the acid, and this conversion is a good test of the progress of the student in the use of the blowpipe. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Mix one part of the substance with about four parts of the hydrate of baryta, and expose it to the blowpipe flame. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The concretions contain a small proportion of carbonate of lime: a fragment placed under the blowpipe decrepitates, then whitens and fuses into a blebby enamel, but does not become caustic. Volcanic Islands The cyanide of potassium thus prepared, contains some of the cyanate of potassa, but the admixture does not deteriorate it for blowpipe use. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It is employed in blowpipe analysis, for the purpose of producing in glass beads a lower degree of oxidation, particularly if the substance under examination contains only a small portion of such oxide. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations A good reduction flame can be obtained by the use of a small orifice at the point of the blowpipe. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations There are many other metallic sulphides, which, when heated by the blowpipe flame, cover the charcoal with a white incrustation, as sulphide of antimony, sulphide of zinc, and sulphide of tin. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Under the blowpipe it immediately becomes white, and emits a strong animal odour, like that from fresh shells. Volcanic Islands Of the metallic chlorides there are many which, when heated on charcoal with the blowpipe flame, are volatilized and redeposited as a white incrustation. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations This color is best discovered in the outer flame of the blowpipe, as is the case with all the other colors. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations In borax, we have the action of free boracic acid, as well as borate of soda, and for that reason it is an excellent reagent for blowpipe analysis. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The flame should be a small one, with a lamp having a small wick, while the orifice of the blowpipe must be quite small. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It is, moreover, difficult to find a particle of the lime which does not change colour under the blowpipe, most of them even becoming glazed. Volcanic Islands Antimony.—This metal imparts a blue color to the blowpipe flame, but if the metal is in too small a quantity, then the color is a brilliant white. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations In general the reactions of magnesia before the blowpipe are not sufficient, and it will be necessary to confirm its presence or absence by aid of reagents applied in the wet way. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations In blowpipe analysis, we use it fused with carbonate of soda to a bead, as a test for sulphuric acid, and in some cases for phosphoric acid. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Besides, this kind of glass is easily fusible in the oxidating flame of the blowpipe, while, in the reducing flame, its ready decomposition would preclude its use entirely. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Under the blowpipe, it behaves like the specimens from Ascension; but it is less hard and glossy, and the surface has not the shrunk appearance. Volcanic Islands The alkalies cannot be reduced to the metallic state before the blowpipe. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations This color presents the same modifications as the corresponding ones communicated to the blowpipe as mentioned above. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It is employed in blowpipe analysis to detect salts of potassa in the presence of sodium and lithium. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The oxides of manganese cannot be reduced upon charcoal with carbonate of soda before the blowpipe. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The feldspar and hornblende in this and the succeeding cases have been determined by the reflecting goniometer, and the quartz by its action under the blowpipe. Volcanic Islands Lead combinations give the following reactions before the blowpipe: Metallic lead tarnishes when heated in the oxidation flame, and is instantly covered with a grey matter, consisting of the protoxide and the metal. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Telluric acid produces the same reactions with the blowpipe reagents as tellurous acid. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations This effects the complete combustion of the gases at a certain distance from the point of the blowpipe. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Thus, with the three illustrations we have given, the student will readily comprehend the great utility of the blowpipe in the examination of minerals. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Under the blowpipe it fuses very readily into a dark grey, and sometimes even black bead, which is slightly magnetic. Volcanic Islands Spodumene When not too strongly heated, colors the blowpipe flame red, when more strongly, yellow. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Upon charcoal, exposed to the blowpipe flame, the three metals are volatilized, and yield a sublimate upon the charcoal. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It is necessary that in operating with such minute quantities of substances as are used in blowpipe analysis, that they should have some appropriate support. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It is where the difference of two minerals cannot be distinguished by their physical appearance, that the aid of the blowpipe comes in most significantly as an auxiliary. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Some of these specimens presented a curious appearance, owing to a number of the vesicles being half filled up with a white, soft, earthy mesotypic mineral, which intumesced under the blowpipe in a remarkable manner. Volcanic Islands The blowpipe is equally an indispensable instrument in the determination of certain minerals which may exist in others as essential or non-essential constituents of them. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Wollastonite Colors the blowpipe flame faintly red from lime. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations But if a greater temperature is required, then recourse must be had to the blowpipe. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Asphaltum C + H + O. Fuses with ease affording an empyreumatic oil having an alkaline reaction, and combustible gasses, and leaves a carbonaceous residue, which is entirely consumed under the blowpipe flame, except a little ash. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations In taking cognizance of water in relation to blowpipe analysis, we regard it only as existing in minerals. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations As the above mentioned higher oxides of bismuth are converted by ignition into oxide of the metal and free oxygen, they have the same behavior before the blowpipe. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations As these metals will not oxidize or dissolve, they cannot be separated from each other by the blowpipe with the reagents peculiar to that species of analysis. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Metals when thus reduced form powders, are not fusible or volatile in the blowpipe flame, but they are attracted by the magnet. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Fuses, takes fire, and burns with a smoky flame, leaving a carbonaceous residue, which under the blowpipe flame, is quickly consumed, with the exception of the ashes. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The silicates of lime are moreover frequently characterized by intumescence or ebullition, when heated in the forceps in the blowpipe flame. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Thus, in a very short time, these two minerals can be distinguished from each other by aid of the blowpipe, while no amount of physical examination could determine that point. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Takes fire under blowpipe flame, and burns with a smoky flame, depositing much soot and leaving a porous cinder which burns slowly and leaves a small ash. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It exhibits before the blowpipe the same behavior as the protoxide. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Axinite Imparts a green color to the blowpipe flame, owing to the presence of boracic acid. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Lepidolite Colors the blowpipe flame crimson, from lithia; also gives the fluorine reaction with microcosmic salt. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The different oxides of lead produce with the blowpipe reagents the same reactions. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The diamond, although combustible, requires too high a heat for its combustion to enable us to burn it with the blowpipe. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations This produces, in the blowpipe flame, an intense and splendid light, and now produces an alkaline reaction upon red litmus paper. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations By the blowpipe, chlorine may be detected in the following manner: Oxide of copper is dissolved in microcosmic salt on the platinum wire in the flame of oxidation, and a clear bead is obtained. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations For a more detailed statement of their reactions, the student is referred to the large works upon blowpipe analysis. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations After being submitted to the blowpipe flame all the nickel is reduced, and the bead becomes colorless. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Exposed to the blowpipe flame, it is instantly volatilized. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations |
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