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A British production made as a fund raising appeal to American audiences to aid British children affected by the Blitz. The film depicts the hardships of life during wartime for children and discus...
Examines what has happened in Europe to check the threat of a menancing population growth. Traces the growth of population in Europe from the Middle Ages and suggests that the small-family concept,...
The anatomy of the eye is shown in detail by diagram, regular photography, and cinephotomicrography. Demonstrates how to correct defects in focusing, the approved way of removing foreign objects f...
Examines the eye in terms of structure, functions, disorders, and hygiene. Reveals, with animated drawings, the various parts of the eye and explains the physiology of sight. Illustrates such eye...
United States. Department of Agriculture. Forest Service
Summary:
Shows the work of the U.S.D.A Forest Service forest rangers across the nation's 161 national forests. Narration lists the forest ranger's duty to "manage the vast American woodland to produce more ...
United States. Department of Agriculture. Extension Service
Summary:
A history of home construction and architectural styles in the U.S. Emphasizes the homestead as symbolic of American values and national character. "The American farmstead, stronghold of human libe...
Shows various types of micrometers; how to use a micrometer, read the barrel and thimble scales, check the accuracy of readings, and take care of the instrument.
Indicates the basic principle of the standard plain milling machine. Each part of the machine is named and explained, and some elementary setups are demonstrated.