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Excerpt from Geological Survey of Michigan Alfred, Vol. 8 Gentlemen - Herewith I transmit as Part I of V0]. VIII, a report by Dr. H. Ries of Cornell University containing the results of his examination of the clays and shales of the State in the summer of 1899, and his tests upon them last winter. Although it does not pretend to be exhaustive in its description of the wealth of the state in these abundant materials, it seems to me to give a clear description of the more important and common kinds, and an interesting account of the uses to which they may be put. I trust it may prove of value. With great respect I am your obedient servant, alfred C. Lane, State Geologist. Hon. Hazen S. Pingree, President. Hon. Perry F. Powers. Hon. Jason E. Hammond, Secretary. 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.