Excerpt from Report Upon Geographical and Geological Explorations and Surveys West of the One Hundredth Meridian, Vol. 5 of 6: Zoology An advance edition of the Topographical Atlas, consisting of Title Page, legend-sheet, Index, Progress and Basin Maps, and sheets Nos. 49, 50, 57, 58, 59, 65, 66, and 67, was issued in 1874; other sheets will follow as rapidly as they can be prepared, engraved, and printed. The maps from the field-work of 1873 and subsequent years will be projected upon a scale of one inch to four miles. Sheets of a geological atlas, to supplement Volume III, based upon the topographical results, advance toward com pletion. Addenda Note - Lieutenant Wheeler, in his Annual Report for 187 5, recommends an additional volume, to be numbered VII, and to be devoted to the subjects of Ethnology, Philology, and Ruins. 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.