VETERINARY MEDICINE. 79 



Conditions influencing' the transmission of East Coast fever, G. 11. F, 

 NuTTALL and E. Hindle (Paru-ntology, G (1913), No. 3, pp. 321-332).— Ex\)(iri- 

 uients in the transmission of East Coast fever here reported led the authors to 

 conclude that " infected ticks do not produce infection during the first 2 d:iys 

 when feeding on cattle. Infected ticks are still infective after feeding upon a 

 rabbit for 3 days. Heating infected ticks to 37° C. for 3 days does not render 

 them infective during the first 2 days after they become attached to the host. 

 The partial feeding of infected ticks for 2 days, followed by starvation for 17 

 days, renders thorn noninfective. Inoculations of emulsions of infective ticks 

 collected from cattle on the fifth day of engorgement failed to produce infection. 

 Infective ticks are rendered noninfective by exposure to a temperature of about 

 10° for 3 weeks. Their infectivity may be restored by subsequently warming 

 them." 



Piroplasmosis, G. H. F. Nuttall (Parasitology, 6 {1013), No. 3, pp. 302-320, 

 figs. 14; BiiJ. Johns Hopkins Hosp., 24 {1913), No. 272, pp. 307-316, figs. 22).^ 

 This is a summarized account of the present knowledge of piroplasmosis. 



Experimental investig-ations on the therapeutic action of yeast in alimen- 

 tary, multiple polyneuritis in g-uinea pigs and pigeons, ]M. Barsickow 

 {Biochem. Ztschr., 48 {1913), No. 5, pp. 418-424, pi. J).— Dried living yeast 

 cells, zymin (acetone permanent yeast), Cerolin (an alcoholic extract of the 

 fatty substances present in yeast), and a yeast killed by drying at 120° C. were 

 used in these experiments. No difference was noted in the therapeutic efi!ects 

 between those preparations containing enzyms or living yeast cells and dead 

 yeast cells which contain no enzyms. It is concluded that in all probability the 

 therapeutic properties of yeast depend upon the nuclein or salts of nucleic acid 

 which it contains. 



Cultivation of the rabies organism, Anna W. Williams {Jour. Amer. Med. 

 Assoc, 61 {1913), No. 17, pp. 1509-1511, figs. £).— The author reports observa- 

 tions made during the course of studies of Negri bodies, in which attempts 

 were made to cultivate the virus. 



The parasite of rabies, O. Bartholow {Jour. Amer. Med. Assoc., 61 {1913), 

 No. 17, pp. 1555, 1556). — A critical review of recent literature. 



Note on rinderpest, E. W. Oliver {Dept. Land Rcc. and Agr. United Pror. 

 Agra and Oudh. Agr. 8er., 1913, Bui. 28, pp. 13, pi. 1, figs. 11).— A general 

 description of this disease, including vernacular names for rinderpest as use<l 

 in various parts of India, diagnosis, and treatment, based upon observations in 

 India and South Africa. 



The morphology of Trypanosoma simiae n. sp., D. Bruce et al. {Proc. 

 Roy. Soc. [London], 8er. B, 85 {1912), No. B 581, pp. 477-481, pi. 1, figs. 5).— 

 *• T. simice n. sp.. is a well-defined species, easily separated by its mori^hology 

 alone from the other trypanosomes which have been described as causing disease 

 among domestic animals. It sets up a chronic disease in goats, but is chiefly 

 remarkable for its rapidly fatal action on monkeys. In Nyasaland it is carried 

 by (ilossina ynorsitans and in this district. Central Angoniland, this tsetse fly 

 is found to be heavily infected with this trypanosome."' 



Trypanosomes of the domestic animals in Nyasaland. — I, Trypanosoma 

 simiae n. sp., II, III, D. Bruce et al. {Proc. Roy. Soc. [London], Ser. B, 87 

 (1913), No. B 592. pp. 48-57, 58-66. pis. 5).— Continuing the studies noted above, 

 the authors find that as regards the susceptibility of various animals, T. simiw 

 belongs to the same group as 7'. pecorum, aud like the latter is erratic in its 

 action. It affects goats, sheep, pigs, aud monkeys, while oxen, antelope, dogs, 

 rabbits, guinea pigs, and rats are practically immune. The reservoir of the 

 virus is the warthog. 



