Descriptive Geology Of Nevada South Of The Fortieth Parallel And Adjacent Portions Of California PDF Download

Excerpt from Descriptive Geology of Nevada South of the Fortieth Parallel and Adjacent Portions of California The primary Object Of the expedition was to make the roughest kind of a general geologic map, such as might fill up the great gaps in the map Of the western United States. It being the intention of the Sur vey to publish a general geologic map Of the United States on a scale of. About 40 miles to the inch, no great amount of detail was advisable or possible. On account, also, of the rough and inaccurate manner in which much of the region Of the western United States has been already mapped, it was not advisable to undertake to do any work of higher grade. 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.