Proceedings Of The Boston Society Of Natural History 1876 1878 Vol 19 Classic Reprint

Download or read book Proceedings of the Boston Society of Natural History, 1876-1878, Vol. 19 (Classic Reprint) written by Boston Society of Natural History and published by Forgotten Books. This book was released on 2016-12-22 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Proceedings of the Boston Society of Natural History, 1876-1878, Vol. 19 The limestones of the Levis division contain a very abundant fauna described by Billings, which was shown by him to belong to an horizon near that of the Calciferous and Chazy divisions of the New York series. It is this fauna which has been looked upon as indicating elsewhere the presence of the Quebec group. These three divisions at Quebec have a measured thickness of over five thousand feet, and are found dipping at a high angle to the southeast. The whole was described by Logan as having originally occupied a posi tion conformably beneath the Trenton limestone of the vicinity, and as having been brought to the surface by a great break and uplift of the strata. 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.