Clinical Roentgenology of Diseases of the Chest.

This volume appears at a time when books on roentgen-ray examinations of all kinds are appearing in great numbers. The authors' work is founded on their own experience. Every variety of pathologic condition that one may encounter is discussed, and reproductions of original plates are presented. The authors give careful consideration to the clinical side, and at the same time succeed in correlating the pathologic condition with the result of roentgenologic examination. Their technic is rather different from the accepted one, in that they photograph the patients at a distance of 4 feet, and do not use intensifying screens. They use single plates, and the results are excellent. In the main, they agree with such well accepted views as that the blood vessels furnish the marking of the lungs and that root shadows do not reflect a normal condition but at the same time are not evidences of tuberculosis. Some