Excerpt from The American Journal of Physiology, Vol. 47 The results of our experiments do not incline us toward the view that the posterior lobe extracts yield several hormones. The prepara tions that we used contained difierent amounts of the vasodilator sub stance but this is undoubtedly not specific but identical with that found in many organic extracts. The lack of parallel between the pressor effect on blood pressure and the effect on the kidney can well be explained on the basis of difl'ering threshold of stimulation by the same active hormone. 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.