Excerpt from Twenty-Third Annual Report of the Director of the United States Geological Survey to the Secretary of the Interior, 1901-2 The work of the Geological Survey during the fiscal year 1901 - 2 was to a large extent a continuation of that of the pre vions year, described in the Twenty-second Annual Report. A few details of organization were changed, but the general work was carried on in essentially the same manner as in other years. The record of accomplishment, both in field and in office, will be given after a few subjects of special interest have received consideration. 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.