Excerpt from The Copper-Bearing Rocks of Lake Superior III. - Thin sections of olivine-gabbros fig. 1.-from bed of French River, Minn. N. Line, N. E. Sec. 7. T. 51, R. 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.

Considered one of the classic geologic areas of the world, the Lake Superior region is one of the most interesting geological areas in North America. An excellent resource for the reader, this book includes examples, photos, maps, and diagrams of the geology of this region.

Ancient Mining on the Shores of Lake Superior is an unchanged, high-quality reprint of the original edition of 1863. Hansebooks is editor of the literature on different topic areas such as research and science, travel and expeditions, cooking and nutrition, medicine, and other genres.As a publisher we focus on the preservation of historical literature.Many works of historical writers and scientists are available today as antiques only. Hansebooks newly publishes these books and contributes to the preservation of literature which has become rare and historical knowledge for the future.