1. Kodak A3270 Reference (shelfmark): Kodak A3270 Title: Scope & Content: A. P. H. Triuvelli and W. F. Smith, The effect of precipitation time and silver iodide concentration on the characteristics of photographic emulsions, three volumes, 1942, 519pp. Research Collection Area: Visual Arts Languages: English Date Range: 1942 Extent: 3 volumes: Typescript copy