Power Spraying With DDT

How to use DDT residual spray in the home; the power sprayer, its useand maintenance. Photographs and drawings. 2nd ed. (CDC- 5-002.1; 95 frames, synchronized disc, 14 minutes, color) Precision Cage Blocks U.S. Office of Education, 1945. (Machine Shop Work Series. Precision Measurement No. 6) Reviews material presented in motion picture, same title