586 EXPEKIMENT STATION RECOED. 



j^2<)).—In continnatioii of work previously noted (E. S. R., 21, pp. 184, 488) 

 tlie authors report experiments conducted witli orpiment as a remedy for 

 baled. They consider the experiments to have demonstrated that the drug 

 has a high curative power for the equine trypanosomiases so widespread in 

 West Africa, which are transmitted by tsetse flies. The trypanosomiases trans- 

 mitted by tabanids, of which surra or M'Bori is the type, appear to be more 

 difficult to cure. 



Enzootic of equine piroplasmosis in Chaouia, Laf argue, Lussault, and 

 Savaky (Rev. Gen. MM. Vet., 12 {1908), No. 1J,1, pp. 489-502, cJiarts 3).— The 

 authors here report the occurrence of piroplasmosis in horses of the French 

 military service in Chaouia, Morocco. Horses of the French race which have 

 seeu hard service are particularly susceptible to the disease. In the spring 

 and summer of 1908 some 90 horses were affected. The mortality, which was 

 low at the last of the enzootic, is said to have been from one-eighth to one- 

 sixth of the affected animals. Many ticks are reported to have been taken 

 from the diseased horses. 



Treatment of experimental dourine in horses, Rennes (Bui. Soc. Cent. MM. 

 V6t., 86 {1909), No. 8, pp. 135-137; Jour. Compar. Path, and Ther., 22 {1909), 

 No. 2, pp. 160-162). — In experiments conducted by the author treatment with 

 atoxyl and mercury appeared active but too dangerous to recommend. One 

 case thus treated appeared to I'ecover from dourine but died soon after from 

 mercurial poisoning. Treatment with atoxyl and tartar emetic was very well 

 borne and gave good results. One horse was thus cured in. 2 months, after 

 having been severely infected experimentally with material which rapidly 

 killed one control animal and rendered two others seriously ill throughout the 

 period of observation. 



Piroplasma canis, Eggebrecht {Ztschr. InfeJctionskrank. u. Eyg. Haustiere, 

 5 (1908), No. 1-2, pp. 129-132; ahs. in Yet. Bee, 22 {1909), No. 1097, p. f/8).— 

 The author reports the occurrence of piroplasmosis in a sheep dog of the 

 German breed, 2* years old, which had lived continuously at Tsingtau, China. 



The present status of our knowledg'e of the etiology of dog distemper, 

 B. Galli-Valerio {Centbl. Bakt. [etc.], 1. AM., Ref., J^l {1908), No. 17-18, pp. 

 563-570, fig. 1). — The author here reviews the subject at some length and 

 gives references to the literature. 



He concludes that dog distemper is caused by the Bacterium which he first 

 described as B. cantciilcv, and which is very probably identical with that 

 described 5 years later by Lignieres. This Bacterium takes a very definite 

 position between the colon-typhoid and hemorrhagic septicemia groups. The 

 filterable virus of Carre is not the cause of the disease for with it it is im- 

 possible to produce the disease with all its symptoms as is readily done with 

 B. caniculw. The author suggests that the symptoms of the disease supposed 

 by Carre to have been due to a filterable virus may have been produced by an 

 aggressin. 



Further studies on fatal septicemia in young chickens, or white diarrhea, 

 L. F. Rettger {Jour. Med. Research, 21 {1909), No. 1, pp. 115-123).— A paper 

 read before the Society of American Bacteriologists in December, 1908. 



The author concludes that " fatal septicemia and ordinary white diarrhea are 

 one and the same disease. The malady is caused by a specific organism whose 

 important characteristics I have described, and to which I have given the name 

 of Bacterium pullorum. This organism occurs in the internal organs and in 

 the unabsorbed yolk. The easiest and most satisfactory method of identifying 

 the bacillus is^by the agar streak and subsequent plating method given in this 

 paper." 



