Excerpt from Bulletin of the American Association of Petroleum Geologists, Vol. 6: January-February, 1922 The Glenn formation is the connecting exposure between the Pennsylvanian rocks in southeastern Oklahoma and sedi ments Of the same age in north central Texas. The purpose Of this paper is to describe the stratigraphy and structure Of the Glenn and at the same time to Offer a basis for correlating the Carboniferous deposits in southern Oklahoma with those Of north central Texas. The economic importance Of the Glenn formation is briefly pointed out. 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.