1917] VETERINARY MEDICINE. 777 



in a slight cloudiness and a very noticeable precipitate. Microscopic examina- 

 tions of the filtrates showed an increase in the so-called granules. An increase 

 in the albumin content of the filtrates during the incubation period was also 

 observed. Examination of the filtrate after the removal of this albumin did 

 not show the presence of the granules. 



Five pigs which were removed from their mothers at birth and fed by hand 

 were injected intravenously and intraperitoneally with 60 cc. of a hog-cholera 

 blood filtrate. Three similar animals were used for controls. After four days 

 both the inoculated and control pigs were bled and the blood examined micro- 

 scopically. No difference was observed between the blood of the two sets of 

 animals. The inoculated pigs on post-mortem examination showed slight 

 hemorrhages in the lungs, lymphatic glands, and kidneys. The control pigs 

 showed hemorrhagic foci in the kidneys, a condition which has been shown 

 to be common in young pigs. 



An attempt to attentuate hog-cholera blood by passage through rabbits and 

 using a virus prepared by extracting the carcasses of injected rabbits with 

 physiological salt solution and passing it through a Pasteur filter was unsuc- 

 cessful. Six of the eight pigs inoculated with this virus died of acute hog 

 cholera and five exposure check pigs also died. 



Hog-cholera blood dried over sulphuric acid lor periods varying from 10 to 

 15 days and subjected to heat of from 40 to 42" C. for periods of from four to 

 seven days did not produce the disease. No immunity, however, was conferred, 

 as the inoculated pigs died later when exposed to hog cholera. The work to 

 determine the relative virulence of hog-cholera blood at different periods of the 

 disease, as previously noted (E. S. R., 34, p. 783), was continued. The data 

 are reported in tabular form. 



Of 156 samples of blood tested for infectious abortion in cattle by the 

 agglutination test, 96 yielded negative results and 60 positive reactions. 



Report of the veterinary department for the biennial period, July 1, 1912, 

 to June 30, 1914, J. I. Gibson {Bien. Rpt. Yet. Surg. Iowa, 9 {1913-14), pp. 

 36). — This report includes data i-elating to hog cholera control work in Dallas 

 County, Iowa, and rules and regulations adopted by the animal-health com- 

 mission of the State. 



Fifteenth report of the Live Stock Sanitai'y Board and chief veterinary 

 inspector of Maryland, 1914—15, L. Hickman et al. {lBicn.'\ Rpt. Live Stock 

 Sanit. Bd. and Chief Vet. Insp. Md., 15 (1914-15), pp. 45, figs. 7).— This report 

 deals with the occurrence of and control work with infectious diseases of 

 animals in Maryland, reporting at length on the occurrence of and eradication 

 work with foot-and-mouth disease during the recent outbreak. 



Proceedings of the fifteenth annual convention of the North Dakota 

 Veterinary Association (Proc. N. Dak. Vet. Assoc., 15 (1916), pp. 46). — The 

 greater part of this report is taken up by a paper on Sterility in Cattle, by 

 W. L. Williams (pp. 15-39). 



Annual report of the veterinary service for the year 1915, W. Littlewood 

 (Ann. Rpt. Vet. Serv. Egypt, 1915, pp. Vr+59; abs. in Trop. Vet. Bui., 4 (1916), 

 No. 4. PP- 192-196). — The several sections of this, the usual annual report 

 (E. S. R., 36, p. ISO), deal with contagious diseases, the work of the veterinary 

 pathological laboratory, and the work of the school of veterinary medicine. 



A Note on Spraying of Cattle with Special Dips for the Eradication of Ticks, 

 by H. Cooper (pp. 45-48) ; a census of cattle, buffaloes, sheep, goats, camels, 

 pigs, horses, mules, donkeys, etc., in Egypt during 1914 as compared with that 

 of 1915 ; and the return of animals slaughtered in the principal abattoirs during 

 the year are appended. 



