As an attempt to cover comprehensively this large and important subject, the book is not satisfactory. The sections on etiology and pathology are good, and form an epitome of the latest and best investigations. Proper emphasis is laid on the importance of recognizing tuberculous cow's milk as a dominant factor in the causation of the disease in children. The sections on diagnosis and treatment are disappointing. The descriptions of operations are often not sufficiently clear to be of use, and in some instances are distinctly incorrect, as in the cases of the Albee and the Hibbs operations on the spine. The photographs and photomicrographs are remarkably good and are valuable. Many of the line drawings, particularly of apparatus, are unworthy of a book of this character, and the crayon reproductions of Roentgen-ray negatives are wholly valueless.