Excerpt from Subject List of Works on the Mineral Industries and Allied Sciences, in the Library of the Patent Office To find the place of a given work upon the Library shelves, the number in parentheses at the end of the entry in these Lists should be noted and the Library press book consulted, where, against the same number, the shelf mark is given. For general purposes, the type-written guide to the shelf Classification, which will be found at the central desk in the Library, will sumce to lead a, searcher to a particular group of works. The Periodicals, which in these Lists, are arranged in strict order of date, are on the. Shelves. 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.