Atomic Medicine.

This book, now in its fourth edition, has grown in two separate volumes bound with on cover. The first half is concerned with various aspects of radiation injury and derives much of its information from the follow-up studies of the group exposed to the radiation effects of nuclear weapons. The second half, greatly expanded over the former editions, is devoted to the medical applications of radioisotopes. It is doubtful whether readers of each separate section have a great deal in common. The present day investigator using radioisotopes has little interest in the gross pathological danger from nuclear weapons. Similarly the student of radiobiology has an entirely different interest than does the tracer technologist. It is, of course this latter area which provides the only reason for a later edition. In the area radiation effects, little new data have been added since the early editions. Comparing this edition with the second