662 HANDBOOK OF PHOTOGRAPHY 



positive prints might then be made by dye transfer or a combination of dye transfer 

 and toning. 



Another interesting process for making motion-picture prints in color is the 

 so-called Gaspar color. With this process a special triple-layer positive film carries 

 the corresponding dyes, which are destroyed afterward in a bleach bath and, to a 

 degree, controlled by the density of the silver image. 



Bibliography 



Periodicals: 



Matthews, Glekn E.: Processes of Photography in Natural Colors, J. Soc. Motion Picture Engrs., 15, 



188-219 (1931). This article contains a large list of references. 

 DtJBRAT, J. A.: The Morgane Color Process, J. Soc. Motion Picture Engrs., 20, 403 (1933). 

 Spencer, D. A.: Phot. J., July, 1935, p. 377; Penrose Ann. (1938). 

 Mannbs, L. D., and L. Godowsky: The Kodachrorne Process, J. Soc. Motion Picture Engrs., 24, 65 



(1935). 

 Ball, I. A.: The Technicolor Process, J. Soc. Motion Picture Engrs.. 24, 127 (1935). 



Hamlin, L.: Composition of Baths for Color Sensitizing by Bathing, Am. Phot., December, 1935, p. 784. 

 Strong, J.: On a Method of Decreasing the Reflection from Non-metallic Substances, J. Optical Soc. 



Am., 26, 73 (1936). 

 Renwick, F. E.: Phot. J.. January, 1937. 



Baitmbach, H. L.: New Metallic Toners for Three Color Photography, Camera, January, 1937, p. 21. 

 Capstaff, J. G., O. E. Miller, and L. S. Wilder: Projection of Lenticular Color Films, J. Soc. 



Motion Picture Engrs., 23, 123 (1937). 

 Harrison, G. B.: Negative-positive Processing of Dufaycolor, Phot. J., April, 1937, p. 2.50. 

 Hardy, A. C: Theory of Three Color Photography, J. Soc. Motion Pictzire Engrs., 29, 227 (1937); 31, 



331 (1938). 

 Forrest, J. L., and F. M. Wing: New Agfacolor Process, J. Soc. Motion Picture Engrs., 29,248 (1937). 

 Ceccarini, O. O.: Color Stills, J. Soc. Motion Picture Engrs., 29, 397 (1937). 



Harrison, G. B.: Theory of Additive Three-color Photography, Phot. J., December, 1937, p. 706. 

 Colour Photographs, Ltd.: Color Separation Negatives, Brit. J. Almanac, 1938, p. 385. 

 Morse, R. S.: Black and White Prints from Kodachrorne, Am. Phot., January, 1938, p. 1. 

 MacAdam, D. L.: Fundamentals of Color Measurement, J. Soc. Motion Picture Engrs.. 31, 343 (1938). 

 Tritton, F. J.: Survey of Photographic Masking Methods for Three and Four Color Printing, Phot. 



J., December, 1938, p. 732. 



Books: 



HtJBL, A. Von: "Three Color Photography," A. W. Penrose & Co., London (1915). 

 Wall, E. J.: "History of Three Color Photography," Am. Photographic Pub. (1925). 



: "Practical Color Photography," 2nd ed.. Am. Photographic Pub. (1928). 



Namias, R.: La fotographia a colori, 5th ed., II progress© Fotografia, Milan (1930). 



Wheeler, O.: "Color Photography," Pitman (1935). 



Nbwens, F. R.: "The Technic of Three Color Photography," Blackie & Sons, Ltd. (1936). 



Dunn, C. E.: "Natural Color Processes," Am. Photographic Piib. (1936). 



"The Chromotone Process," 5th ed.. Defender Photo Supply Co. (1937). 



Spencer, D. A.: "Colour Photography in Practice," Pitman (1938). 



Henney, Keith: "Color Photography for the Amateur," McGraw (1938). 



"Wratten Light Filters," Eastman Kodak Co. (1938). 



Curtis, T. S.: "Curtis Dufaycolor Printing System," T. S. Curtis Laboratories. Huntington Park, Calif. 



"Modern Masking Method of Correct Color Reproduction," Eastman Kodak Co. 



Potter, R. S.: "Methods of Making Three Color Separation Negatives." Defender Photo Supply Co. 



"Handbook of Physics and Chemistry," 12th ed.. Chemical Rubber Pub. Co. 



"Trichrome Printing by the Autotype Carbro Process," The Autotype Co., Ltd., London, and George 



Murphy, Inc., New York. 

 "Color Printing with Eastman Wash-off Relief Film," Eastman Kodak Co. 

 "Printing and Toning of Eastman Positive Motion Picture Film," Eastman Kodak Co. 

 "Practical Color Photography with Finlay Natural Color Process," Finlay Photographic Processes, Ltd. 

 "The Dufa>coIor Manual," Diifaycolor. Inc., New York. 



