Book excerpt: Excerpt from Canada Medical Journal and Monthly Record of Medical and Surgical Science, 1868, Vol. 4 Ross, george, a.m., M.D. Simpson, thonas, M.D. Storer, horatio R, M.D. Worthington, E. D M.D. Wright, willian, M.D. 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.