VETERINARY SCIENCE AND PRACTICE. 91 



analysis gives unsatisfactory results. The author recommends the construction of 

 special test hottles for cream. — f. w. woll. 



Determination of fat in cream by Gerber's acid-butyrometric method, 

 M. Sciimoeuer (Milch Ztg.,27 (1S9S), Xo. 3, pp. 33-35). — The author calls attention to 

 the possible error in the Gerber method arising from impure amyl alcohol, or from 

 adding the acid aud the amyl alcohol in other proportions than those given by the 

 inventor. He shows that the method does not give reliable results with cream when 

 tests are made according to Gerber"s directions. By a modification proposed, viz, 

 dilution of 1 part of cream with 2 parts of water and adding acid and amyl alcohol 

 in the same proportions as in case of tests of whole milk, fairly satisfactory results 

 were obtained. The difference between the results obtained by gravimetric analysis 

 and by the modified method was within 0.5 per cent. — f. w. woix. 



Centrifugal machines for the Gerber acid-butyrometric method (Milch Zt<j., 

 27 (1898), Xo. l,pp. 6-7, fi<js. 4). 



The milk and butter supply of large cities, E. Saillard (2. Congres Internat. 

 Chim. Appl., 1S96, II, pp. 42-57). 



Denmark's butter export, 1896-97, B. Boggild (Tidsskr. Landbkon, 16 {1897), Xo. 

 5-6, pp. 682-691).— The exports of butter from Denmark during the year 1896-97 

 amounted to 140,889,000 lbs. avoirdupois against 131,570,000 during the preceding 

 year. The excess of exports over imports was 101,530,000 lbs. against 99,291,000 lbs. 

 in 1895-96. Of the butter exported 136,155,000 lbs. were sent to England, which is 

 an increase of nearly 6,000,000 lbs. over the butter export to England during the 

 preceding year. — F. w. w r OLL. 



The curdling power of the ferment of calves' rennet and test of antiseptic 

 agents for preserving it, C. Petit (2. Congres Internat. Chim. Appl., 1S96, II, pp. 

 39-41). 



Influence of the individuality of cows on the fat content of the milk. C. J. 

 Martin (2. Congres Internat. Chim. Appl., 1S96, II, pp. 37, 3S). 



The utilization of skim milk, buttermilk, and whey, C. J. Martin (2. Congres 

 Internat. Chim. Appl., 1S96, II, pp. 31-36). 



On the sterilization and pasteurization of milk, L. L'Hote (2. Congrls Internat. 

 Chim. Appl., 1896, II, pp. 29, 30). 



Pure sterilized milk and its preservation in flasks which prevent the separa- 

 tion of butter, P. Lapeyrere (,'. Congres Internat. Chim. Appl., 1S96, IV, pp. 299-304, 

 figs. 4). 



The influence of food on production of milk by cows, Hagemaxn (..'. Congres 

 Internat. Chim. Appl., 1896, II, pp. 235, 236). 



The bacteriology of cheese making, C. GfORiNl (Bol. Xot. Agr., 19 (1S97), II, Xo. 

 28, pp. 388-396). 



VETERINARY SCIENCE AND PRACTICE. 



On the results of the rinderpest investigations at Koch's 

 experiment station in Kimberly (Deut. Med. Wchnschr., 23 (1897), 



Xo. 50-51; abs. in Gentbl. Bait. k. Par., 1. AM., 23 (1898), No. 8, pp. 

 337-311). — The injection of gall was found to be ineffective. The 

 immunizing power of the gall is attributed to chemical properties, 

 which, contrary to Koch aud Edington's experience, are weakened by 

 the addition of glycerin. The use of gall is safe, since it causes no 

 trouble even when mixed with the feed of the animals or dropped into 

 their nostrils, nor are animals treated with it dangerous to other 

 animals. Rinderpest generally spreads by natural infection. Oases 

 of sickness following gall injection are attributed to previous infection. 

 2234—^o. 1 -7 



