Excerpt from The Paleozoic Fishes of North America, Vol. 16 Although the geology of but a part of the continent of North America has yet been carefully studied, local surveys and general reconnaissances have made known all the principal features of its structure. They have shown that all the members of the geologic series are somewhere in its great area well represented and that the strata contain fossils which enable us to make satisfactory comparisons with the geology of other divisions of the earth's surface, and to fix beyond question the relative position of all Important groups of rocks. We have learned, further, that the order of suc cession in the strata composing the geologic column is the same here as in other parts Of the world, and that the progress of animal and plant life during the geologic ages was in North America essentially the same as that revealed by explorations in Europe, Asia, Australia, Africa, and South America. 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.