Credits: Collaborator, Mary Beard.
© Encyclopaedia Britannica Films, Inc.; 18Jun46; MP774.
ENGINEERING. Audio Productions, Inc., for the U. S. Office of Education, c1944. 1 reel each, sd., 16mm. © Audio Productions, Inc.
X-Ray Inspection. © 1Apr44; MP14678.
Measurement with Light Waves. © 5May44; MP14873.
ENGINEERING. Graphic Films, c1945. 1 reel each, sd. © Graphic Films.
Principles of Lubrication. © 1Dec45; MP378.
Principles of Refrigeration. © 1Dec45; MP379.
Principles of Dry Friction. © 1Dec45; MP380.
ENGINEERING. Vocational Guidance Films, Inc., c1942. 1 reel, sd. (Your Life Work Series)