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Excerpt from Physiography of Western United States In calling this book Physiography we are merely accepting the American usage of a not very fortunate term. The central theme of the work is the land forms of western United States and how they came about. There is no doubt about this center Of interest, but the circumference Of an appropriate mass Of fact may be hard to fix. A companion volume on the Physiography of Eastern United States is now in preparation. It may be assumed that geologists and geographers have equal interest in land forms, but the quality of their interests is very different. To the geologist land forms are a kind of final product, the end Of a story. TO the geographer they Offer a beginning, a point Of departure. TO the former, land forms depend on all the physical processes of geology. TO the latter, they depend on nothing; almost everything else depends on them in some measure. According to the above-made statement of our central theme this book is mainly geological. It treats land forms as effects, not as causes. But before doing so, or while doing so, it is necessary to devote a'large share Of space to the description of forms as they are. Such descriptions have equal interest to the geographer. Moreover, to a writer who shares the geographic interest there is a constant temptation to clothe these land forms with life by pointing out their influence on climate and life and habitation and civilization. NO attempt has been made to resist this impulse but, on the other hand, there is no attempt to treat such matters systematically or symmetrically for all parts Of the territory. They belong to the illustrations, not to the systematic framework. If industries are named in one section Of the country and not in another it is merely because they serve to illuminate a point in one case and not in the other. 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.