VETERINARY MEDICINE. 577 



mination of nitrates to be carried out even after 120 hours. It Is advised 

 that Congo red at the rate of 0.2 cc. of 2 per cent solution be added to the sub- 

 limate for every 250 cc. of milk. It has no effect upon the analysis of the milk 

 and is a warning of the poisonous character of the preservative. 



"Water content of butter, W. Theopold (Ber. ^l^ahrmtl. Untersuch. A?nt. 

 Bromhcrg., 1913, p. 16; ahs. in Zischr. Untersuch. Nahr. u. Gcnussmtl., 28 

 {191.'f), No. 2, pp. 109, 110; Jour. Soc. Chem. Indus., 33 (1914), No. 22, p. 1106).— 

 Tests indicate that butter does not increase in weight by absorption of water 

 when moistened externally or placed in cold water for 70 hours. A sample of 

 butter containing 22.9 per cent water showed 22.6 per cent after treatment, 

 while another sample with 18.8 per cent showed 18.2 per cent. 



Marketing butter and cream in the South (U. S. Dept. Agr., Office Sec. 

 Spec. iCirc], 1914, Dec. 19, pp. 3). — A brief discussion of methods. 



Making farm butter in the South (U. S. Dept. Agr., Office Sec. Spec. ICirc], 

 1914, Dec. 28. pp. 4). — General suggestions are given. 



Shall southern farmers build creameries? (f/. S. Dept. Agr., Office Sec. 

 Spec. [_Circ.], 1914, Dec. 2S, pp. 3). — A brief discussion on organizing and con- 

 ducting a farmers" creamery. 



Dairy bacteriology, A. Wolff (Molkereibaktcriologische Betriebskontrolle. 

 Berlin: P. Parey, 1914, PP- yi+llS, figs. 9). — ^This is a general text treating 

 of the bacteriology of milk and its products, giving directions on methods of 

 preparing cultures and identifying the various bacteria, and methods for the 

 market control of dairy products. 



Bacilli coli of milk, B. A. Van Ketel {11. Cong. Internat. Pharm. [The 

 Hague], 1913, Raps. 5. Sect., pp. 109-111). — It is stated that the usual source 

 of contamination is the feces, the body of the cow, or the feed, and that the 

 optimum temperature for growth is 37.5° C. (99.5° F.). There appeared to be 

 a variety of opinions on the temperature required to destroy bacilli coli, rang- 

 ing from 62 to 75°, and depending upon the duration of the period. 



Analyses of the milk of sick cows, B. Sjollema {11. Cong. Internat. Pharm. 

 [The Hague], 1913, Raps. 5. Sect., pp. 83S6).— It is stated that in general the 

 milk of sick cows shows a greater degree of acidity and contains an iucreased 

 quantity of the ferments catalase, reductase, and amylase. The lactose content 

 is diminished, while the chlorin and albuminoids show an increase. In extreme 

 cases the milk shows an abnormal color. 



A study of streptococci isolated from certain presumably milk-borne epi- 

 demics of tonsilitis occurring in Massachusetts in 1913 and 1914, T. Smith 

 and J. H. Brown {Jour. Med. Research, 31 {1915), No. 3, pp. 455-502) .—After 

 their extensive studies the authors conclude that the " streptococci causing epi- 

 demics of tonsilitis are not necessarily the same in different epidemics either 

 in the same or different localities. . . . There is at present no satisfactory 

 evidence that bovine streptococci associated with mastitis or garget are the 

 agents of tonsilitis in man. Whenever cases of garget are suspected as sources 

 of infection in man. both human and bovine types should be looked for." 



Reindeer milk production, G. Grotenfelt {Mcrlkeritid.. 21 {1914), No. 22, 

 pp. 399-411, figs. 24). — Analyses are given of reindeer milk, and methods of 

 making reindeer cheese are described. 



VETERINARY MEDICINE. 



Annual reports of the official veterinarians of Prussia for 1910 and 1911, 

 Nevermann {Veroffentl. Jahres-Tet. Ber. Tierdrste Preuss., 11 {1910 [pw&. 

 1912]), pt. 1, pp. VI+136, pis. 17, figs. 2; 11 {1910 [pub. 1913]), pt. 2, pp. IV + 

 171; 12 {1911 [pub. 1913]), pts. 1, pp. VI -[■137, pis. 16; 2, pp. IV +131).— 



