On the Protective Substances of Immune Sera

Abstract

The theories of Ehrlich on the Substances and Mechanisms concerned in the production of Immunity have opened up a very wide field for speculation and research. His view on the formation of the Antitoxins forms the most satisfactory and useful hypothesis which has been produced upon this subject, and is constantly receiving fresh support from the accumulating evidence of numerous observers. But of the more recent developments of his theories as applied to antimicrobic agencies some of the details appear to be at present insufficiently established. With certain of these details it is here proposed to deal.