This is an excellent text on the subject mentioned in the title. It contains detailed reference to the morphology, cultural characters, susceptibility to various agents, the chemical composition, toxins, tissue lesions, and mechanism of host infection of the tubercle bacillus. Tuberculosis of the various tissues and organs is discussed fully. Part two contains details regarding tuberculosis in animals other than man. These chapters discuss the bovine and avian types and also the acid-fast bacilli of cold blooded animals. Part three considers the tissue defense and the diagnosis of tuberculous infection. Part four deals with the natural immunity and immunization against tuberculosis. One chapter of this part considers briefly chemotherapy. The text is especially valuable to those interested in more than clinical tuberculosis. For the latter group, however, there is contained much useful information.