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"This film illustrates the difference between World War II and the war of 1914, emphasizing the importance of mechanization, and contrasting the mobile tactics with the immobility of trench warfare...
"Step-by-step manufacture and assembly of the B-26 medium bomber in the Glenn Martin plant at Baltimore."--War Films, Bulletin of the Extension Division, Indiana University, February, 1943.
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...
Follows two pioneer families along the difficult and dangerous Wilderness Road to the Kentucky frontier fort at Harrod's Station. Describes the hardships encountered in establishing a new home in ...
Diagrams and photographs show the external, middle, and inner ear and their component parts. Illustrates the auditory canal, ear drum, malleus, labyrinth, stapes, semicircular canals, vestibule, c...
Modern community hygiene controls are presented. How the death rate from communicable diseases has been reduced through scientific advances and social controls. The effective functioning of a pub...
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 ...