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Excerpt from Text-Book of Physiological Chemistry in Thirty Lectures Physiology and physiological chemistry were at one time a single field of investigation. The latter, owing to the remarkable progress of the exact sciences chemistry and physics, has now developed to such an impor tant branch of natural science that it is altogether impossible today for any one scientist to master thoroughly in all its details the whole field of physiology. Little by little, there has developed a sharp distinction between pure physiology and physiological chemistry. It is clear that an artificial separation of two such closely related fields of investiga tion must work to disadvantage for the development of each, so that it is fortunate to find it recognized more and more that the whole science of physiology can only develop satisfactorily when there is an intimate exchange of ideas between investigators in the two fields. The chemical decompositions in the tissues do not take place beside the physiological processes, but are bound up with them. In no single case can we carry out any distinction-in such a sense; and with those organs in which the relations between the functions and the metabolism are not known, this is chiefly because of our limited knowledge concerning the latter. In this connection we need only recall the whole nervous system. 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.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.