The first edition of this work, published in 1930, is now offered in forty-six more pages and with fifty-four more illustrations. The text is amplified, and more attention is paid to technic and sources of error. The most noteworthy additions pertain to the esophagus, diaphragmatic herniations, the stomach on which an operation has been performed and the colon.
For those who are unfamiliar with the first edition, it may be said that the work is one of the choicest contributions to the literature of gastro-enterology. Berg, an old pupil of Forssell's, pioneered in the systematic roentgenologic examnation of the digestive tube by the use of sufficiently small amounts of barium to bring out the relief picture of the mucosa. His disciples, notably Gutzeit, Albrecht and Knothe, have done much to further its development.
The book begins with a historical review, which is followed by a detailed discussion of technic and