A Textbook of Bacteriology

on the modern system, the old nomenclature is also given. The chapters on filtrable viruses, immunity, bacterial virulence, toxin, antitoxins and agglutinins are particularly good for the concise and comprehensive way in which these subjects have been dealt with. The inclusion of the more important pathogenic protozoa in a small chapter will be appreciated by the busy practitioner though it is inadequate for the needs of a medical student in the tropics. The five appendices at the end of the book contain some very