Excerpt from Transactions of the College of Physicians of Philadelphia, 1933-1934, Vol. 1: Fourth Series Dr. Josef B. Nylin, M.D., Chief of Clinic, Department of Physical Therapy, University Hospital; Associate in Physical Therapy, School of Medicine and Graduate School of Medicine, University of Penna; Assistant Pro fessor of Physical Therapy, Woman's Medical College. University Hospital, Philadelphia. 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.