Recent advancements in the technology of animal vaccination have given this vaccination method a significant and still growing importance in Germany. Additionally, much has been achieved in recent years through experimental means to clarify the nature of infections in other vaccine-preventable diseases, which has indirectly provided considerable support for the understanding of the vaccination process. The author has aimed to make these achievements useful for vaccination practice. This book on vaccination, its experimental and empirical foundations, and its techniques, with particular emphasis on animal vaccination, is an unaltered reprint of the original edition from 1884. Illustrated with 17 historical images.