[17] Wing, L. W., Milking machines; their sterilization and their efficiency in producing clean milk, N. Y. (Cornell) Exp. Sta. Circ. 18, 1913.
[18] Ruddick, J. A., and G. H. Barr, The cooling of milk for cheese making, Ottawa Dept. of Agr. Bul. 22, 1910.
[19] Wis. Exp. Sta. Rept. 1895, pages 14-150, Fermentation test for gas-producing bacteria in milk. This is commonly called the Wisconsin curd test.
[20] Stevenson, C., Pepsin in cheesemaking, Jour. Agr. (New Zeal.) 14 (1917), pages 32-34.
Todd, A., and E. C. V. Cornish, Experiments in the preparation of homemade rennet, Jour. Bd. Agr. (London) 23 (1916), no. 6, pages 549-555.
Besana, C., Lack of coagulating ferment in cheesemaking, Staz. Sper. Agr. Ital. 49 (1916), pages 10-12.
Van Dam, W., Rennet economy and substitutes, Verslag. Ver. Exploit. Proefzuivelboerderij. Hoorn, 1914, pages 45-46.
[21] The paragraphs on the chemistry of casein and on rennet action have been selected from a complete discussion of the subject by E. B. Forbes and M. H. Keith in Ohio Exp. Sta. Tech. Bul. 5 entitled, "A review of the literature of phosphorus compounds in animal metabolism." The original references cited in this discussion are given at the end of the chapter in the order of their citation in the text.
See also, Van Slyke, L. L., and D. D. Van Slyke, I, The action of dilute acids upon casein when no soluble compounds are formed; II, The hydrolyses of the sodium salts of casein, N. Y. (Geneva) Exp. Sta. Tech. Bul. 3, pages 75-162, 1906.
Sammis, J. L., S. K. Suzuki and F. W. Laabs, Factors controlling the moisture content of cheese curds, U. S. Dept. Agr. Bur. An. Ind. Bul. 122, pages 1-61, 1910.
[22] Sammis, J. L., and A. T. Bruhn, The manufacture of Cheddar cheese from pasteurized milk, Wis. Exp. Sta. Research Bul. 27, 1912.
[23] Esten, W. M., Bacteria in the dairy, Conn. (Storrs) Rept. 1896, pages 44-52.
[24] Bushnell, L. D., and W. R. Wright, Preparation and use of butter starter, Mich. Exp. Sta. Bul. 246, 1907.
Hastings, E. G., Preparation and use of starter, Wis. Exp. Sta. Bul. 181, 1909.
Larsen, C., and W. White, Preparation and use of starter, S. D. Exp. Sta. Bul. 123, 1910.
Guthrie, E. S., and W. W. Fisk, Propagation of starter for butter-making and cheese-making, N. Y. (Cornell) Exp. Sta. Circ. 13, 1912.