Excerpt from The Geology of the Oil Regions of Warren, Venango, Clarion, and Butler Counties: Including Surveys of the Garland and Panama Conglomerates, in Warren and Crawford, and in Chautauqua Co;, N. Y C. E. Hall Geologist in charge of the Survey of the Philadelphia belt, and Palaeontologist in charge of the Museum. 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.