This book provides a detailed study of the Potomac Formation in Virginia, offering insights into the geology, ecology, and environmental history of the region. Whether you are a student or a professional in the field of geology or environmental science, this book is an essential resource. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Excerpt from The Potomac Formation in Virginia In his annual reports Professor Rogers regarded the Mesozoic areas Of Virginia as composed Of strata belonging to two different epochs not remote from each other. The Older strata be called Middle Second ary, and the younger Upper Secondary. In his Middle Secondary be included all the areas except the most easterly ones and the northern detached portion of the Richmond coal field. The Upper Secondary areas Of Professor Rogers are those numbered 6 and 7 by Prof. James D. Dana,2 with also the northern portion of no. 5, these being the portions mentioned above as excepted. 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.

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Contents.--pt. 1. Titles of books in the Virginia State Library which relate to Virginia and Virginians, the titles of those books written by Virginians, and of those printed in Virginia, but not including ... published official documents.--pt. 2. Titles of the printed official documents of the Commonwealth, 1776-1916.--pt. 3. The Acts and Journals of the General Assembly of the Colony, 1619-1776.--pt. 4. Three series of sessional documents of the House of Delegates: ... January 7-April 4, 1861 ... September 15-October 6, 1862; and .. January 7-March 31, 1863.--pt. 5. Titles of the printed documents of the Commonwealth, 1916-1925.