1917] VETERINARY MEDICINE. 377 



Some considerations on the new dual theory of Carrion's disease, J. Aece 

 (Cron. M4d. [Peru], SS (1916), No. 641, p. 377; abs. in Jour. Amer. Med. Assoc, 

 68 (1917), No. 4, p. S18). — The author's long years of experience in Peru have 

 confirmed more and more the view that Peruvian verruga and Oroya fever are 

 the benign and the malignant forms of one and the same disease. He has failed 

 to find any proof of the zooparasitic nature of the inclusions in the red corpuscles 

 referred to in the report by Strong et al. noted on page 356 as Bartonella bacilli- 

 fonnis. 



Gaseous gangrene. — Bacillus oedematous and antiedematous serum, M. 

 Weinberg and P. S^guin (Compt. Rend. Acad. Sci. [Paris], 164 (1917), No. 9, 

 pp. 365-368). — The organism B. oedematous, isolated from a number of cases of 

 gaseous gangrene, vpas found to be highly pathogenic. A highly antitoxic and 

 prophylactic serum was prepared by the injection of the organism into a horse. 

 This antiserum was found to yield excellent results in the treatment of gaseous 

 gangrene caused by B. oedematous in removing the focus of the gangrene. 



The reversible precipitation in glanderous serum, M. Belin (Compt. Rend. 

 Soc. Biol. [Paris], 79 (1916), No. 20, pp. 1095-1098) .—The author notes the 

 formation of a precipitate on heating the serum from a glanderous horse. The 

 precipitate appears at 47° C. and increases in amount rapidly until the tempera- 

 ture reaches about 55°, at which point the serum is very turbid. I'urther heat- 

 ing to about 60 to 61° dissolves the precipitate completely if the heating be 

 rapid enough. If this solution temperature is attained rapidly enough and the 

 material then placed in cold water a reprecipitation takes place. It is indi- 

 cated that the substance precipitated is not a globulin but an albumin. 



The serum in contact with the clot or preserved alone in a test tube forms a 

 precipitate as well as the serum preserved \vith an antiseptic. 



The reaction was not found to be uniform. A general parallelism was, how- 

 ever, noted between the intensity of mallein reactions and the amount of pre- 

 cipitation. The positive reversible precipitation reaction is considered to indi- 

 cate an unpromising prognosis in glanders. The injection of mallein was found 

 not to influence the reaction in any way. 



The culture of the causative organism of epizootic lymphangitis, A. 

 BoQXJET and L. N^gre ^Bul. Soc. Path. Exot., 10 (1917), No. 4, pp. 274-276).— 

 The authors' studies indicate that the causative organism of epizootic lym- 

 phangitis belongs to the genus Endomyces. 



Treatment of epizootic lymphangitis by potassium iodid, J. Caetiek (Rec. 

 MU. V4t., 92 (1916), No. 21, pp. 614-618; abs. in Vet. Rev., 1 (1917), No. 2, pp. 

 ISl, 132). — In the treatment of epizootic lymphangitis the author has found 

 potassium iodid to give satisfactory results when administered in doses of from 

 12 to 20 gm. daily. It was found desirable to divide the daily dose and also to 

 interrupt the course of treatment by periods of from seven to ten days during 

 which the drug is not given. Seven cases are reported upon. 



Pseudotuberculosis in guinea pigs, R. Van Saceghem (Compt. Rend. Soc. 

 Biol. [Paris], 79 (1917), No. 17, pp. 908, 909).— The author notes an outbreak 

 of pseudotuberculosis in guinea pigs which were used in a study on the treat- 

 ment of trypanosomiasis in animals. The symptoms of the disease, together 

 with the post-mortem findings, are described. 



An organism which could not be distinguished morphologically from the 

 plague bacillus was isolated from the tubercles which were found at autopsy. 

 On being injected into normal animals the organism reproduced the disease. 

 A vaccine made by heating a bouillon culture of the organism at 60° C. for 

 two hours and injected subcutaneously in doses of 1 cc. protected the animals 

 against a subsequent subcutaneous injection of the virulent organism. 



