786 EXPERIMENT STATION RECORD. 



Parasitology, J. I>. Todd {Reprirvt from Montreal Med. Joitr., 38 ( 1909), Oct., 

 Pt). 11). — A bi'ief account of the parasitic diseases and tlie agents implicated 

 in their transmission. 



A fight against the invertebrate propagators of infectious diseases {Bill. 

 Off. Intrniat. Hijii. I'lib. [Por/.s]. 1 iUHH)), ^o. 7, pp. .5'/ .3-566' ) .— A review of the 

 present status of the role of invertebrates in disease transmission, their natural 

 enemies, and the methods of combating them. 



A review of the recent advances in our knowledge of tropical diseases, J. I.. 

 ToDu {Bill. Johns Hoiikins Hosp., 21 {1910). No. 232, pp. 212-21S) .—This is a 

 paper read before the Johns Hopkins Medical Society in February, 1910. 



Notes on trypanosomes of the Dimorphon group, L. E. W. Bevan and M. E. 

 ^MacGrkgor {Rhodesia Agr. Jour., 7 {1910), No. 5, pp. 1373-1373, figs. 2; Vet. 

 Jour., 66 {1910). No. J,21, pp. 386-390, figs. 2).— Observations of trypanosomes 

 obtained at Broken Hill, Northwestern Rhodesia, from a cow dying of typical 

 tryitnnosoniiasis are briefly reported. 



The occurrence of trypanosomes in cattle in Germany, P. Knuth and G. 

 Rauchbaar {Berlin. TierarzU. Wchnschr., 26 {1910), No. 31, pp. 609, 610).— 

 Examinations of 19 bovines from various parts of Germany showed the presence 

 of trypanosomes in the blood of 10. 



A case of sleeping sickness studied by precise enumerative methods; regu- 

 lar periodical increase of the parasites disclosed, R. Ross and D. Thomson 

 {Jour. Trop. Med. and Hijg. [London^, 13 {1910), No. 12, pp. 181. 182, chart 1 ; abs. 

 in Chem. Neics, 102 {1910), No. 26JiO, p. 10). — "The enumerative methods re- 

 ferred to consist of modes of detecting blood parasites when very scanty, and 

 of counting them accurately. The methods have been applied to a case of 

 sleeping sickness in the clinic of Professor Ross in Liverpool for 73 days con- 

 tinuously, and have shown that the numbers of Trypanosoma gambiense in this 

 pa'tient's blood undergo remarkable periodical variations about every 7 to S 

 days. The authors state that, so far as they can ascertain, though the numbers 

 of trypanosomes had been known previously to vary from time to time, the I'egu- 

 lar periodicity revealed in their case appears to have been overlooked, possibly 

 owing to insufiicient methods of counting. The authors report that numerous 

 parallel researches are being conducted, and give a chart." 



Second series of experiments on treatment of surra in camels, A. S. Lkkse 

 {Jour. Trop. Vet. Sci., 5 {1910), No. 3, q)p. 397 -J, lO).—."^ continuation of the work 

 previously noted (E. S. R., 22. p. 785). 



On the transmission of African Coast fever to healthy animals through 

 intraperitoneal inoculation with the spleen and portions of the spleen of 

 sick animals, K. F. Meyer {Ztschr. Infektionskrank. u. Hyg. Haustiere, 6 

 {1909), No. 5, pp. 37.'i-379, pi. 1. fig. J). — Previously noted from another soui-ce 

 (E. S. R., 22, p. 186). 



Theileria parva, the parasite of East Coast fever in cattle, G. H. F. Nuttall 

 and H. B. Fantham {Parasitology. 3 ( J910). No. 2, pp. 118-129, pi. 1, figs. .2).— 

 A I'eport of observations on stained preparations. 



Argas reflexus and its parasitism of man, H. Benoit-Bazille {Mem. Soc. 

 Zool. France, 22 {1909), No. 3-Jf, pp. 261-280, pis. 3). — A summarized account 

 of the occurrence and habits of .1. reflexus and of its attacks upon man. A list 

 of some 35 references is appended. 



The degenerative appearances observed in Piroplasma canis and in Trypa- 

 nosoma brucei following upon drug treatment, G. H. F. Nuttall (Parasitol- 

 ogy, 3 (1910), No. 2, pp. 202-209, figs. 2). — The author considers these degenera- 

 tive changes of importance in that they may help to distinguish normal from 

 abnormal parasites in untreated animals. 



