Excerpt from West Virginia Geological Survey, Vol. 1: Petroleum and Natural Gas, Precise Levels Page 6, line 9 from top, for amamls, read animals. 6, line 12 from top, for conquerer, read conqueror. 10, line 4 from top, for ingenius, read ingenious. 11, line 10 from'top, for irridescent, read iridescent. 26, line 5 from top, for rus read runs. 37, line 8 from bottom for read compares. 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.