152 HANDBOOK OF PHOTOGRAPHY 



Leersmaker, J. A.: J. Chem. Phys., 6, 779 (1937). 



, B. H. Carboll, and C. J. Staud: /. Phys. Chem., 5, 893 (1937). 



Vardbn, L. E., and J. N. Harman, Jr.: New High Speed Emulsions, Am. Phot., 18 (1938). 



Varden, L. E.: Direct Copy Film, Am. Phot., 236 (1938). 



Arnold, P. H.: Sensitivity Tests with Ultraspeed Negative Films, J. Soc. Motion Picture Engrs., 31, 



541 (1938). 

 Armor, A. E.: Manufacture of Motion Picture Film, Phot. J., 459 (1938). 

 Albersheim, W. J.: Latent Image Theory, J, Soc. Motion Picture Engrs., 32, 73 (1939). 



Books: 



Travelli, a. p. H., and S. E. Sheppaed: "The Silver Bromide Grain in Photographic Emulsions," 

 Van Nostrand (1921). 



Ross, F. E.: "Physics of the Developed Image," Van Nostrand (1924). 



Chibisoff, K. W.: "Ripening of Photographic Emulsions," p. 405, IXth Cong, intern, de Phot., Paris 

 (1936). 



FoRSTTHE, W. E., et al.: "Measurement of Radiant Energy," McGraw (1937). 



Sheppard, S. E., and R. H. Lambert: "Grain Growth in Silver Halide Precipitates," Colloid Sym- 

 posium Monograph, vol. 6, p. 265 (1938). 



"New Kodak Films," Eastman Kodak Co. (1938). 



