This is an interesting volume of a select segment of the history of diabetes mellitus. The photographs of more than 150 physicians and medical scientists are reproduced with a line or 2 of historical description and one or more pertinent references. The volume is prepared by setting "cold type" and printed by offset lithography. In most instances, the reproductions are thoroughly satisfactory; more so than the biographic data, which sometimes is sketchy or too brief. For one interested in medical history or diabetes mellitus, this will prove to be a valuable reference text.