Dorland's Illustrated Medical Dictionary.

As the authors state in the preface, the twenty-third edition of this medical classic does indeed usher in a new era in the history of "The American Illustrated Medical Dictionary." Dr. W. A. Newman Dorland, whose name has been inseparably linked with that of the dictionary since its first edition, died in 1956. The present editorial board has made his name an official part of the title, and the volume will henceforth be known as "Dorland's Illustrated Medical Dictionary." A large and distinguished board of editors and consultants have taken over the task of keeping the dictionary current. The basic format of the previous volumes remains unchanged. In spite of the fact that four thousand definitions have been added, the new edition is 138 pages shorter than its predecessor. This has been accomplished by increasing the page size and by eliminating some definitions, especially those of words not in the