Appl. author: John G. Curtis.
© Atlas Educational Film Co.; title, descr., & 2 prints, 5Jun44; MU14910.
PRINCIPES FONDAMENTAUX DE L'ACCOUSTIQUE. Encyclopaedia Britannica Films, Inc., c1948. 1 reel, sd., b&w, 16mm. French version of "Fundamentals of Acoustics."
Summary: By means of animated diagrams, the range and physiology of hearing, and the principles of velocity and refraction of sound are explained. Engineering problems, such as the elimination of high and low frequencies, are also considered.
© Encyclopaedia Britannica Films, Inc.; 15Nov48; MP3599.
PRINCIPLES OF BAKING (FLOUR MIXTURES). c1943. 1 reel.
Appl. author: Erpi Classroom Films, Inc.
© Encyclopaedia Britannica Films, Inc.; 16Dec43; MP14748.
PRINCIPLES OF COOKING (MEATS AND VEGETABLES). c1943. 1 reel.
Appl. author: Erpi Classroom Films, Inc.