The present edition of this well-known textbook conforms, as might be anticipated, in every way to the type of its respected predecessors. Indeed, it seems superfluous to review, and presumptuous to criticize, a book which has become so universally popular. Although written along the general lines of many textbooks of bacteriology, and containing essentially the same material, the wide experience of the authors with the practical as well as the purely scientific side of the work places a stamp of authority on many aspects of the subject which is usually lacking in similar treatises.
It is apparent throughout that real criticism has been exercised in handling the material. Thus, in the sections on technic, staining, and culture mediums the methods of actual value are emphasized, and hand in hand with the presentation of the theoretical side of immunity reactions are given excellent summaries of the technic and actual results of