Book excerpt: Excerpt from The Journal of Experimental Medicine, 1916, Vol. 23 Text-fig. 1. Guinea pig 583. Received 4 cc. Of inactivated serum derived from a case of acute articular rheumatism. Tracing, taken on fourth day, shows no reaction to pneumococcus antigen, although there is a sharp response to ergamine. 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.