Chemical analysis of the key elements of plant and animal life, chlorophyll and hemoglobin is presented.

A young boy with rheumatic heart disease and an enlarged heart is treated successfully with ACTH, a drug developed from a pituitary hormone of pigs. Includes a film "Report on the living," produced by the Documentary Company for the Federal Security Agency, Public Health Service.

In 1939 the presence of the Rh factor was discovered to be in the blood of a large majority of human beings. This explains the some of the problems in pregnancy and childbirth when a father is Rh positive and the mother is Rh negative, which can cause hemolytic disease of newborns.