VETERINARY MEDICINE. 683 



poiutetl for the purpose of inquiring into the reliability and efficiency of the 

 tuberculin testing of dairy cows, and the necessity for its adoption. The com- 

 mission did not recommend the adoption of the test for controlling tuberculosis, 

 but recommended the physical examination of dairy cows and a certificate as 

 10 the health of animals shipped into the State of Illinois for breeding purposes. 



The strength of various tuberculins measured according' to the official 

 German method, K. Siegesmond {Ztsclir. Hyg. u. Infelctionskrank., 66 (1910), 

 No. 3, pp. 357-3S2). — After reviewing the methods for preparing and measuring 

 the strength of the various tuberculins, the author reports the results of his 

 tests with the method in use at the Royal Institute for Experimental Thera- 

 peutics at Frankfort-on-the-Main.<^ 



It was found that Beraneck's tuberculin (E. S. R., 23, p. 687) is the weakest 

 preparation and tuberculol C ^ the strongest. The latter was decidedly 

 stronger than the standard preixiration. Beruer's tuberculin ° was found to 

 be oilly one-half as strong as the official preparation, while the Dohna tuber- 

 culin in one instance was just as strong as the official.'^ The other samples 

 of this preparation were uniform in their action. 



The life cycle of Theileria parva: The cause of East Coast fever in cattle 

 in South Africa, R. Gonder {Jour. Compar. Path, ani Titer., 23 {1910), No. //, 

 pp. 328-335, fig. 1). — The author presents an illustrated account of the life 

 history of T. parva as worked out at the Government Veterinary Bacteriological 

 Laboratory at Onderstepoort, Pretoria. 



The development of the parasite in the organs is divided into 2 generations 

 distinguishable by their morphology (agamogenetic and gamogenetic). The 

 tick of chief importance in the transmission of the disease, RMpicephaliis 

 appendiculatus, was largely used in the investigations. " If the tick has been 

 infected as a larva it can only transmit the disease in the nymphal stage ; 

 if it has become infected as a nymph it can only transmit the disease as an 

 imago. An infected tick purifies itself completely from all infection once it 

 has bitten an animal. If infected as a larva it can only become reinfected 

 as a nymph, but never as an adult tick." 



[Cultivation of the acid-fast bacillus found in the intestine of cows in 

 Johne's disease], F. W. Twort (Proc. Rog. Sac. [London], Ser. B., S3 {1910), 

 Nb. B 562, p. 158). — The author states that he has succeeded in isolating and 

 growing the acid-fast bacillus found in the intestine of cows in Johne's disease. 



" The first generation of this bacillus grows often long, with occasional 

 branching and club formation, in subcultures it gradually grows smaller, and 

 in the second or third generation is about the size of the tubercle bacillus. 

 The growth is only just visible to the naked eye, and subcultures on the ordi- 

 nary laboratory media show no evidence of multiplication. Johne's bacillus 

 grows somewhat more easily than Hansen's lepra bacillus; the bacilli being 

 well formed and quite acid-fast. The cultures were incubated at 40° C." 



Bell's paralysis in a heifer calf, T. G. Palgrove (Vet. Jour., 67 {1911), No. 

 'i27, pp. 52-5.'f). — A description of a case in a 6-months-old calf with ultimate 

 recovery. 



A new disease of sheep, A. Gaertnee {Berlin. Tierarztl. Wchnschr., 26 {1910), 

 No. 30, pp. 595-597; Ce^ithl. Bakt. [etc.]. 1. Ait., Orig., 5// (1910), No. 6, pp. 

 5)6-563; al)s. in Ceufbl. Bakt. [etc.], 1. AM., Ref., 48 {1910), No. 3, p. 78; Vet. 



oKlin. Jahrb., 7 (1S9S-1900), p. 225. 



*Hyg. Rundschau, 8 (1898), No. 10, p. 481; 10 (1900), No. 8, p. 361; Beitr. 

 Klinik Tuberkulose, 10 (1908), No. 4, pp. 293-372. 



"Arch. Wiss. u. Prakt. Tierheilk., 32 (1906), No. 6, p. 562. 

 "^Klin. Jahrb., 7 (1898-1900), p. 359. 



