Truelove and Heyworth have once again assembled a thorough presentation of topics in gastroenterology. The section on dietary fiber provides a meticulous and complete discussion of its physical and chemical properties along with physiological and metabolic aspects of this indigestible material that has titillated the interest of physicians and faddists in the 1970s. In addition to showing the effects of different fibrous substances on absorption of calcium, zinc, and other minerals, a separate chapter discusses gums, gels, and mucilages and how they influence absorption and conditions such as hyperlipidemia and diabetes.
The section on cancer of the stomach is excellent. There is an interesting consideration of theories of cause as well as a splendid exposition with many illustrations of the contrast method of radiological study of the gastric mucosa. If anything has been omitted, it is a discussion and pictorial presentation of the early ulcerating malignant neoplasms emphasized by the