Excerpt from Address: Introductory to the Fifteenth Annual Course of Lectures in Rush Medical College; Delivered Nov. 2, 1857 As it was by a rigid observation of facts, aided now and then by well-devised experiments, that the different branches of natural science were so rapidly transformed from a crude jumble of facts and fanciful theories to the form of well-defined and exact sciences, so the many points of contact between these sciences and the several branches of medicine could not fail to render the same method of investigation popular and predominant in the profession. 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.