Excerpt from An Elementary Geology: Designed Especially for the Interior States The distinctive feature of the following work is its limitations. It is designed for students and readers of the Interior States, and, consequently, for such has its chief references to home geology. The simplicity and regularity of the geological formations in these states render them singularly fitted to be illustrations of the science; and, moreover, the formations are rich in fossils beyond those of most other parts of the world. By thus limiting the scope of the work, it is believed that a much better book for beginners may be made than if far more were attempted. No work, however large, can fully set forth a science to which, for the last forty or fifty years, contributions have been made by hundreds of earnest workers in the Old World and the New. The problem has been to give enough, and that clearly, and not too much. 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.

Excerpt from A Manual of Elementary Geology: Or the Ancient Changes of the Earth and Its Inhabitants He was soon informed by Mr. Logan, at that time engaged in the geological survey of Canada, that the white sandstone above Montreal was really much older than the Old Red, or Devonian. It had in fact been ascertained many years before, by the State surveyors of New York (who called it the Potsdam to lie at the base of the whole Silurian series. As such it had been pointed out to me in 1841, in the valley of the Mohawk, by Mr. James Hall, * and its position was correctly described by Mr. Emmons, on the borders of Lake Champlain, where I examined it in 1842. It has there the character of a shallow water deposit, ripple-marked throughout a considerable thickness, and full of a species of Lingula. The flat valves of this shell, of a dark color, are so numerous, and so arranged in horizontal layers, as to play the part of mica, causing the rock to divide into laminae, as in some micaceous sandstones. 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.

Excerpt from Elementary Geology of Tennessee We find, also, that they differ very much from each other in the manner in which they have been formed, or built up. Thus, in a railroad cut, we often see rocks in the form of beds, lying one above the other. In other places we find masses of rock, disconnected from all others, Without any regular form. Again, there is much difference in the consti tution of a bed of thin slate and a mass of compact marble. The structure of the rocks is therefore an important point to be considered in studying them. 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.

Excerpt from Elementary Geology: With Special Reference to Canada SO many elementary text-books Of Geology are available that it seems almost superfluous to add to the number. Geology, however, is a science embracing, not only general principles of world-wide importance, but the application of those principles to the working-out of the history of a given locality or country. 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.