Guide to the Mineral Collections in the Illinois State Museum (Classic Reprint)

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Excerpt from Guide to the Mineral Collections in the Illinois State Museum In the following pages an attempt has been made to so describe the minerals constituting our constantly growing collections as to emphasize the most important ones and at the same time to present to the reader a good idea of the science of mineralogy. The average visitor approaches the subject as a child would and just as the human race has done. When early man wandered up stream courses and found a gold nugget he doubtless was attracted by its yellow color, in time noticed the weight, softness, etc., and learned to use it as an ornament. The child does the same, using the senses of sight, feel, taste, and smell in making the acquaintance of any strange substance. Hence the physical characteristics - form, color, hardness, and weight - of various minerals are described, and then their chemical constituents, geological and geographical relations, and use are given. By becoming acquainted with various minerals the visitor obtains a knowledge of the science. In preparation of this work the writer has used chiefly Dana's, Mier's, Lacroix's, and Tschermak's mineralogies and Tutton's and Groth's crystallographies, in addition to individual articles in U.S.G.S. reports, scientific journals, etc. Especial thanks are due Professor O. C. Farrington for painstaking revision of the manuscript, Professor W. S. Bayly for careful reading of the proof, and the University of Chicago Press for the thorough manner in which their part of the work has been done. Professor Farrington supplied photographs for Plates IV, XVIII, XIXa, and XXVIIa. Plate VIb is after W. M. Foote, and Plate Ia is reproduced by permission of B. F. Buck & Co. The other illustrations are by the writer. 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.