Excerpt from The Edinburgh New Philosophical Journal, Vol. 39: Exhibiting a View of the Progressive Discoveries and Improvements in the Sciences and the Arts; April, 1845-October, 1845 Saxon Four, M.D., Author of The Cli mate of the United States, and its Endemic Influences, Editor of The New York J our nal of Medicine, and the Collateral Sciences, &c. 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.