© The Vitaphone Corp.; 21May45; MP15975.

AIR ALL AROUND US. Young America Films, Inc., c1948. 10 min., sd., b&w, 16mm.

Summary: Designed for use in the elementary school, this film explains the properties of air by demonstrating that air is a substance which exerts pressure, expands and contracts, and can be compressed.

Credits: Director, Helen Warrin; author, Leonard Peck; advisers, Gerald S. Craig, Helen Warrin.

© Leonard Peck Productions; 15Apr48; MP3957.

AIR BRAKES OPERATION AND MAINTENANCE. Jam Handy Organization, Inc. Presented by Bendix-Westinghouse Automotive Air Brake Co. 3 reels, sd., b&w, 35mm.

© Jam Handy Organization, Inc.; title & descr., 5Mar47; 21 prints, 3Mar47; MU1752.

AIR FORCE. Warner Bros. Pictures, Inc., c1943. 124 min., sd. A Warner Bros.-First National picture.

Credits: Producer, Hal B. Wallis; director, Howard Hawks; original screenplay, Dudley Nichols; music, Franz Waxman; music director, Leo F. Forbstein; film editor, George Amy.

© Warner Bros. Pictures, Inc.; 20Mar43; LP11920.