Excerpt from Annual Report of the Commissioner of Mineral Statistics of the State of Michigan, for 1881 Prof. Lawton has visited all of the copper, iron, and coal mines, gypsum and slate quarries in the State that are working, and has also examined and described many other localities were mines are being opened, and to which public interest is directed. Sectional maps of many of the copper mines are included in the report, and have been marked up to J annary lst, 1882. The statistical tables will be found at the close of this volume. To them has been added a table showing the production of gypsum in the State for previous years down to the close of 1881, and also will be found a valuable table prepared by Dr. S. S. Garrigues, State Salt Inspector, showing, in like manner, the salt production of the State. The table showing the coal produc tion has been made more complete than heretofore. I have reported to the Auditor General of the State the amount of copper, iron ore, and coal, subject to a specific tax, produced by each mining com pan y. I am, very respectfully, your obedient servant, chas. E. Wright, Commissioner. 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.