A Summary Description Of The Geology Of Pennsylvania Final Report Ordered By Legislature 1891 Volume 2 PDF Download

Excerpt from Final Report Ordered by Legislature, 1891, Vol. 1 of 3: A Summary Description of the Geology of Pennsylvania, in Three Volumes, With a New Geological Map of the State, a Map and List of Bituminous Mines The page plates of fossils, placed in all cases at the end of the chapters of the several formations, are half-sized reproductions of the figures of fossils given in Report P4, Dictionary of the Fossils of Pennsylvania and the surrounding States, published in 3 volumes in 1889-1890. The Dictionary has been so successful that the demand for it has long since outrun the edition; and the office of the survey is in receipt of requests for it which cannot be answered because the edition is exhausted. It has been a completely successful experiment. But there has been a call for the classification of the figures under the head of the formations to which the fossils properly belong, and I have endeavored to meet this call by grouping the figures of each formation in a series of page plates, which will sufficiently index the Dictionary for geological purposes. In the case of each series the grouping begins with plants, and proceeding upward in the order of life through species of bryozoa and corals, brachiopod, gasteropod, cephalopod, phyllopod and lamillibranch shells, annelids, crustaceans, insects, and vertebrate fish and reptiles, so far as the formation in question contains these. Where references to authority and locality are wanting the reader must consult the Dictionary. These page plates are for popular instruction and not for the use of experts. 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.