Excerpt from A Reprint of Annual Reports and Other Papers, on the Geology of the Virginia The geological work of the survey was, by act of the Legislature, based on the N ins-sheet Map of Virginia; but the use of this map, in the field, proved it to be so grossly inaccurate in its topographical details as to prevent the publication, at the time, of the results of the survey, on a geological map, although the geology was colored on this State map with all the accuracy possible on so imperfect a basis. It was originally intended to accompany this volume with a large geological map of the Virginias, to be edited by Mr. Jed. Hotchkiss, Geologist and Civil and Mining Engineer of Staunton, Virginia, from all the geological data left by Professor Rogers. The geological fea tures of this map are to be colored on a new topographical map which the editor is preparing from information gathered from many sources, the object being to present the geology of the Virginias, as determined by Professor Rogers, on the best topographical map that can at this tims be made. Delays, caused by waiting for important topographical surveys now in progress, have made it impossible to publish this map at present, but it is hoped that it will not be long delayed. Meanwhile a small geological map of the Virginias is substituted, it being a reproduction of that which Professor Rogers colored geologically, in 1873, for Mr. Jed. Hotchkiss, to accompany his Summary of Virginia, published in 1876. No change has been made in the coloring of this map; some changes and addi tions, however, have been made to bring the map up to date, and lines, numbered to correspond with the accompanying geological sections and to show their location, have been added. 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.