Blood transfusion. 1941.

A survey of international progress in the practice of blood transfusion, including the discovery and significance of the blood groups (explained by a means of diagrams), the use of citrated blood, whole blood, plasma, wet and dried serum, and experiments with cadaver blood in the U.S.S.R. The film indicates the experience gained in wars from 1914 on, and describes the operation of various blood donor services.