Excerpt from American Journal of Physiology, Vol. 50 This research was begun in January, 1918, at the Institute for Forensic Medicine of the Tokyo Imperial University and concluded in May, 1918. A preliminary report of the work was made at the Forensic Medical Department of the Fifth Japanese Medical Congress in April, 1918. I desire at this time to express my hearty thanks to Prof. Dr. K. Katayama and Prof. Dr. S. Mita for their kind assistance in the direction of my experiments. 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.