This volume is apparently intended as a textbook of general bacteriology. The first few chapters serve as an introduction and are entertainingly written while at the same time giving the student a sufficient historical background. The next chapters deal with bacteria and their properties. These are followed by discussions of the applications of bacteriology to agriculture, public health and medicine. The important bacterial diseases are included. The book contains a sufficient amount of material for the elementary student and omits details which are of interest only to the more advanced worker. It is a pleasure to recommend this textbook.