Excerpt from A Manual of Zoology Zoology, the branch of Natural History which deals with animals, is one of the two subdivisions of the great science Biology, which takes cognisance of all organisms, or things having life, as distinguished from such lifeless natural objects as rocks and minerals. The second of the two subdivisions of Biology is Botany, which deals with plants. 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.