Deaeration vs. no deaeration, E.S. Guthrie, Daylight Studies, Cultured Cream, Sour Cream, last part of book

Correspondence with the American Dairy Association, other agricultural organizations, manufacturers of dairy machinery, commercial laboratories, and other professors of dairy science concerning experiments, studies of cultured cream, butter making, stock judging at Cornell, and the naming of the dairy building after William A. Stocking; also, Professor Guthrie's laboratory notebooks, texts of various broadcasts he gave (1929-1934) for the Cornell Agricultural Hour on stations WEAI and WESG, his articles, some charts and photographs relating to dairy processes, annual department letters (Nos. 1-7, 1949-1954, 1957) sent to alumni, and printed material.