Radiology in World War II is one volume of a series of the official history of the Medical Department of the U. S. Army in World War II. The binding, paper, printing, and illustrations are quite excellent. The book is divided into seven parts. The historical note by Dr. Allen was interesting. The repetition of some problems encountered during World War I could have been obviated if a similar historical volume, such as this, had been available for World War I experiences. The “Zone of Interior” by eight radiologists involved in this effort relates the many problems encountered in changing from a peace-time operation to the greatly expanded and somewhat altered role of war-time medicine. The Mediterranean and European theaters of operation apparently benefited by the shorter distance from the United States as a source of supplies, and the less severe climate. Also, there was a consultant for radiology in this area, which apparently expedited the solution of many problems.