Excerpt from Elements of Natural History: Embracing Zoology, Botany and Geology, Vol. 2 of 2: For Schools, Colleges and Families; Invertebrate Animals; Botany: The Natural History of Plants; Geology: The Natural History of the Earth's Structure Entered, according to the Act of Congress tn the year 1850. I)? W S. W ruschenberger, M. D., n he Clerk's Office of the District Court of the United States. 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.