Excerpt from Scientific Laboratories of Denison University, Vol. 5 Manchester Literary and Philosophical Society; F. Nicholson, 36 George street, Manchester, England. Library University Of Minnesota, Minneapolis, Minnesota. Dulan and CO (3 copies), London, England. Friedlander and Son, (3 Copies), Berlin, Germany Prof. James Hall, Albany, New York. Society Of Natural History, Cincinnati, Ohio Royal Society Of Canada, Montreal, Canada. Stanley Hall, Journal Of Psychology, Baltimore, Maryland. Johns Hopkins University, Baltimore, Maryland. Geological Survey Of Indiana. Geological Survey Of Pennsylvania. Geological Survey of Ohio. Geological Survey Of New Hampshire. 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.