Excerpt from The Geography of Texas: Physical and Political In the preparation of this text, which necessarily covers a somewhat varied field, I have, in general, been guided by the following works: On Physical Geography and Geology The Reports of the Geological Survey of Texas, under the direction of E. T. Dumhie, state geologist. Austin, 1890-1893. "Notes 011 the Physical Geography of Texas," by Ralph S. Tarr. Proceedings of the Academy of Natural Sciences. Philadelphia, August 29, 1893. "The Physical Geography of the Texas Region," by Robert T. Hill. Folio 3 of the Topographic Atlas of the United States. Washington, United States Geological Survey, 1900. "Physical Geography, Geology, and Resources of Texas," by E. T. Dunible. Chapter IV. Volume 2, of A Comprehensive History of Texas, edited by Dudley G. Wooten. Dallas, William G. Scarff, 1895. "The Geology of the Edwards Plateau and the Rio Grande Plain adjacent to Austin and San Antonio, Texas," by Robert T. Hill and T. Wayland Vaughan. Eighteenth Annual Report of the United States Geological Surrey, Part II, pp. 193-321. Washington, 1898. "Geography and Geology of the Black and Grand Prairies, Texas," by Robert T. Hill. Twenty-First Annual Report of the United States Geological Survey, Part VII. Washington, 1901. "A Gazetteer of Texas" (second edition), by Henry Gannett. Hulletin of the United States Geological Surrey, No. 224 (Series F, Geography, 30). Washington, 1904. 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.