Excerpt from Infection and Immunity: A Text-Book of Immunology and Serology, for Students and Practitioners Another call for a new edition of Infection and Immunity has given the author the opportunity to introduce a certain amount of new matter, which seemed of especial interest to the student of this fascinating subject. The recent advances in the study of Abder halden's protective ferments and the associated technique have thus received detailed consideration. The section on the Wassermann reaction has been almost entirely rewritten. Attention has been directed to the manner in which the danger from anaphylactic shock during serum treatment may be reduced to a minimum. Emphasis has been given to the important observation of Schick and his collaborators, that it is possible through the aid of an allergic skin reaction to recognize those individuals, whose blood normally con tains a quantity of diphtheria antitoxin sufficient for purposes of pro tection. The same is true of the observation of Ashhurst and John, that by suitable technique more encouraging results may be obtained in the treatment of tetanus, after symptoms of the disease have once developed, than heretofore. The possibility has been pointed out that by means of vaccine treatment, Hodgkin's disease may be advantageously influenced, etc. 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.