Publisher's Synopsis
Excerpt from Synoptic Key to the Phyla, Classes, and Orders of Animals: With Particular Reference to Fresh-Water and Terrestrial Forms of the Moist Temperate Region in North America
The key is based on a compilation made over fifteen years ago by Professor V. E. Shelford, who has kindly consented to its publication. The content has been much changed; the form recast; and the references brought up to date by the present compiler, who takes entire responsibility for the: accuracy of this version. I wish here to express my thanks to the many Students and laboratory assistants who have called attention to errors in the mimeographed copies; to all authors who have contributed knowingly or otherwise; and particularly to Professor H. S. Pratt for permission to use largely from his Manual of Common I nverte brates. I am sorry that his forthcoming Manual of Vertebrates is not yet available. 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.
