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Excerpt from The Geology of Minnesota, Vol. 3: Part I, of the Final Report, Paleontology The only allusions Schoolcraft makes to the age of the rocks embraced in this report are so vague and general that they are of no value. Once he refers to the falls of St. Anthony being in the Silurian basin, and at another time he calls the limestone forming the falls the same metalliferous limestone which for so great a length and in so striking a manner characterizes both banks of the Mississippi below St. Anthony falls. Op. Cit., p. 330. He evidently was inclined to consider the lead-bearing rocks about equivalent to the lead-bearing limestones of England, i. E., the mountain limestone or sub-carboniferous, now known as the Mississippi limestone. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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