VETERINARY MEDICINE, 387 



A further report on trypanosomiasis of domestic stock in northern Rho- 

 desia (northeastern Rhodesia), R. E. Montgomeky and A. Kinghorn {Ann. 

 Trop. Med. and Par., 3 {1909), No. 2, pp. 311-37.'f, pis. 2, map 1). — In continua- 

 tion of investigations previonslj^ noted (E. S. R., 20, p. lOSl), the authors here 

 report upon the distribution of stock, the occurrence of biting flies, the disease 

 in stock, prophylactic measures, trypanosomes encountered in naturally infected 

 ruminants and dogs, and examinations made of 20 species of game. 



Trypanosoma theileri and related trypanosomes found in cattle, M. Mayer 

 {Ztschr. InfeJctionskrank. u. Ilyg. Hnusticre, 6 {1909), No. 1, pp. J,6-51, pi. 1; 

 ahs. in Sleeping Sickness Bur. [London], Bui. 7, pp. 279-280). — The trypano- 

 somes reported to have been found in bovines are here considered. 



The cultivation of trypanosomes on artificial media {Sleeping Sickness 

 Bur. [London], Buls. 8, pp. 287-29-'f; 9, pp. 325, 326).— A review of the litera- 

 ture on this subject. 



The role of insects in trypanosome infection {Sleeping Sickness Bur. [Lon- 

 don], Bui. 8, pp. 296-298). — The follow^ing explanation of Kleiue's I'esults is 

 considered possible : " The trypanosomes taken up by the fly seem to disappear 

 in a few days, but in reality a few survive, the virulence being lost ; these 

 gradually adapt themselves to their new environment, and by the twentieth day 

 have niultii)lied and regained their virulence which they then retain for an 

 indetinite period." 



The mechanism of infection in tick fever and on the hereditary trans- 

 mission of Spirochaeta duttoni in the tick, W. B. Leishman (Lancet [London], 

 1910, /. No. 1. pp. ll-l-'t). — An address delivered before the Society of Tropical 

 Medicine and Hygiene, December, 1909. 



Tuberculosis in animals and its relation to man {Trans. 6. Internat. Cong. 

 Tuh&.culosis, 4 {1908), pt. 2, pp. 501-1017, pis. 9, charts 2). — The proceedings of 

 Section 7 of the Sixth International Congress on Tuberculosis, held at Wash- 

 ington, D. C, in 1908 (E. S. R., 20, p. 198) are here reported. Many of the 

 papers are followed by abstracts in 1 or 2 languages other than that in which 

 they were presented. 



At the two sessions held on September 29, papers relating to the prevalence 

 and economics of tuberculosis in animals were presented. The Economic Im- 

 portance of Tuberculosis of Food-producing Animals (pp. 501-511), by A. D. 

 Melvin of this Department, has previously been noted from another source 

 (E. S. R., 21, p. 2S2). O. E. Dyson presented a paper on Economics as a Posi- 

 tive Factor in the Dissemination of Tuberculosis in Animals (pp. 512-518). 

 In A Study of the Tuberculous Contamination of the New York City Milk Sup- 

 ply (pp. 523-530), by A. F. Hess, it w^as found that of 107 specimens of raw 

 milk tested, 17 contained tubercle bacilli. Bovine Tuberculosis in Louisiana and 

 Some Other Southern States was considered by W. H. Dalrymple (pp. 533-542), 

 who stated that while the disease is prevalent and iwssibly on the increase 

 among the dairy cattle of the Southern States, the native or " scrub " animals 

 are singularly free from it, possibly because of their out-of-door nomadic 

 existence, lesser exposure, aud greater natural resistance. Dissemination of 

 Tuberculosis Among Animals in Alabama was the subject of a paper by C. A. 

 Gary (pp. 544-546), in which it was pointed out that the wide ranges and out- 

 door life of these cattle tends to eliminate the transmission of the infection by 

 moist infected nasal discharges or by infected fecal materials, so that scrub 

 and beef cattle are rarely infected by tuberculosis. Moreover, as the beef cattle 

 are not finished in feeding pens on corn they are never followed by hogs, so 

 that hogs are rarely infected by tuberculosis. L. A. Klein reported upon the Con- 

 trol of Tuberculosis in Domestic Animals in Pennsylvania (pp. 547-556), as 



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