302 REFERENCES 



49. Schroeder: The Occurrence and Significance of Tubercle 

 Bacilli in the Feces of Cattle. Trans. Sixth Intern. Cong, on 

 Tuberculosis, Washington, D.C., 1908. 



50. Schroeder and Cotton: Tubercle Bacilli in Butter. Cir. 

 no. 127, Bur. Anim. Ind.,U.S.Dept.Agr.,Washington,D.C.,1908. 



51. Slack: Methods of Bacteriological Examination of Milk. 

 Jour. Infect. Diseases, Supp. no. 2, February, 1906, p. 214. 



52. Sommerfeld, Paul: Handbuch der Milchkunde. Wiesba- 

 den, 1909. 



53. Sparge: The Common Sense of the Milk Question. New 

 York: The Macmillan Co., 1908. 



54. Stocking and Mason: Milking-Machines: Effect upon 

 Quality of Milk. Bull. no. 47, Storrs Agr. Exp. Sta., Storrs, 

 Conn., May, 1907. 



55. Swithinbank and Newman: The Bacteriology of Milk. 

 London: J. Murray, 1903. 



56. Trueman: Milk Supply of Chicago and Twenty-six Other 

 Cities. Bull. no. 120, Univ. of 111. Agr. Exp. Sta., Urbana, 111., 

 1907. 



57. TJ.S. Dept. of Agr., Farmers' Bull. no. 74: Milk as a Food. 



58. Univ. of Wis., Agr. Exp. Sta. 20th Annual Report, Madi- 

 son, Wis., 1904. 



59. U.S. Pub. Health and Mar. Hosp. Serv., Hyg. Lab. Bull, 

 no. 56 : Milk and its Relation to the Public Health. Washing- 

 ton, D.C., 1909. 



60. Van Slyke: Modern Methods of testing Milk and Milk 

 Products. New York: Orange Judd Co., 1906. 



61. Ward, A. R.: Pure Milk and the Public Health. Ithaca, 

 N.Y.: Taylor & Carpenter, 1909. 



62. Whitaker: The Milk Supply of Boston and Other New 

 England Cities. Bull. no. 20, Bur. Anim. Ind., U.S. Department 

 of Agr., Washington, D.C., 1898. 



63. Whitaker: The Milk Supply of Boston, New York and 

 Philadelphia. Bull. no. 1, Bur. Anim. Ind., U.S. Dept. Agr., 

 Washington, D.C., 1905. 



64. Willoughby: Milk, Its Production and Uses. London: 

 Charles Griffin & Co., Ltd., 1903. 



65. Winslow: The Production and Handling of Clean Milk. 

 New York: William R. Jenkins Co. 



