The Range both to the north and south of this region was, perhaps, glaciated about as heavily, but because the rocks are less resisting, their polished surfaces have mostly given way to the weather, leaving only small imperfect patches.

该地区北部和南部的山脉也许经历过同样严重的冰川作用， 但由于岩石的抵抗力较弱， 它们抛光的表面大多已被天气所取代， 只留下不完美的小块。

I was particularly interested in the question, after witnessing the performances of this San Joaquin band upon the glaciated rocks at the foot of the falls; and as soon as I procured specimens and examined their feet, all the mystery disappeared.

在目睹了这个圣华金乐队在瀑布脚下的冰川岩石上的表演后，我对这个问题特别感兴趣；一旦我获得了标本并检查了他们的脚，所有的谜团就消失了。