The first part of this monograph deals with the germinal transmission of the bacilli of tuberculosis and with prenatal contamination through aspiration into a bronchus, or by a hematologic transplantation. This portion is followed by a discussion of the resistance and heredity of the infant organism. The last part of the book describes in detail the 11 instances of congenital tuberculosis in the author's experience. These are fully described and illustrated with photographs of the gross anatomic specimens and photomicrographs. The entire book is well written, and the treatment of the subject seems conclusive. There is an excellent bibliography of Spanish and foreign literature on the subject.