For many years Dr. Mark Ravitch has had a deep interest in both the clinical and experimental aspects of intussusception. With this background he has written an excellent monograph on the subject, which is notable for its completeness and clarity. As might be expected from his previous work, the major emphasis is on the role of hydrostatic pressure reduction in treatment, this section covering almost half of the monograph.
A brief but quite interesting chapter on some historical notes is followed by a section on the clinical picture of the disease. The clinical material from The Johns Hopkins Hospital from 1893 to 1958 is used to document this chapter. The mortality in the total 199 cases rises from 7% in those treated in 24 hours or less progressively to 54% in those treated after a duration of 48 to 96 hours. After a duration of 96 hours the mortality falls