Traces the course of alcohol through the body until it either oxidizes or escapes, and shows the effects of alcohol on the brain. Dramatizes the …

Characteristics of insects in general are indicated and, by means of close-up photography, the distinguishing features of each insect are shown. Suggests that collecting insects …

A film about genetics and heredity in man, various traits are shown and the methods by which they are transmitted is explained.

Animated; drawings and live action scenes show bacterial growth and; reproduction, and ways in which bacteria may be grouped for;systematic study. Contributions of Leeuwenhoek, Pasteur …