VETERINARY MEDICINE. 585 



precipitation test in most cases was satisfactory, although the number of tests 

 made were too few to draw a final conclusion. 



On the basis of the results obUiined the following criterions are considered of 

 value for diagnosing the presence of lung plague in an animal : (1) The filtered 

 lung — or thoracic — cavity exudates of the suspected animals must give the 

 characteristic opalescent turbidity in Martin's peptone bouillon at 37° C. after 

 live to seven days; (2) the virus obtained with the necessary precautions, when 

 inoculated subcutaneously in the lower lip of calves, must show after four to 

 five days a typical swelling at the site of injection accompanied by a rise in 

 temperature (the fastigium is reached after the tenth to twelfth day) ; (3) the 

 cultui'e obtained from the filtered subcutaneous exudate from the inoculated 

 calf must show the characteristic opalescent clouding; and (4) smaller experi- 

 mental animals, treated with the lung — or thoracic — fluid or with the edema- 

 tous fluid from inoculated calves must succumb to the infection. 



Immunization of cattle against East Coast fever, A. Theiler (Rpt. Dir. 

 Vet. Research, Union So. Africa, 2 {1912), pp. 266-314; ahs. in Jour. Compar. 

 Path, and Ther., 26 {WIS), No. S, pp. 261-265).— ''The experience in the field 

 indicates that the inoculation can be safely undertaken in respect of either 

 clean or infected cattle with the prospect of conferring immunity on 56 to 60 

 per cent. The best results in the field may be expected from the injection of 

 5 cc. of spleen or gland pulp (medium, half-coarse, or coarse grain) mixed with 

 aleuronat or peptone, such animals to be kept on clean veldt for 14 or 15 days 

 before they are exposed to natural infection. The immunity conferred by the 

 Injection may not be absolute, inasmuch as twelve breakdowns were noted 

 among the experimental animals, or 1 per cent The animal which supplies the 

 epleen or gland pulp for the inoculation has apparently an influence on the re- 

 sults, as the variation in the mortality from the injection can not be consid- 

 ered to be due to any other factor. 



"Asa possible improvement to the present method of immunizing cattle against 

 East Coast fever, the saturation of the pulp in a solution of quinin hydrochlorid 

 is suggested, the strength of the solution to be between 0.6 and 0.7 per cent." 



Immunization of imported cattle against Northern Rhodesia piroplasmo- 

 sis and anaplasmosis, F. Chambebs {Jour. Compar. Path, and Ther., 26 {1913) ^ 

 No. 3, pp. 249-253). — An account of two Ayrshire bulls affected with Northern 

 Rhodesia piroplasmosis and anaplasmosis. Both were treated with Northern 

 Rhodesia blood and various medicaments which included sodium sulphate, 

 ammonium carbonate, citrate of iron and quinin, and sweet spirits of niter. 

 One of the animals received 120 cc. of a 1 per cent solution of trypan blue. 

 Both animals recovered. 



The susceptibility of the pig to blackleg, S. voN RAtz {Ztschr. Infektions- 

 krank. n. Hyg. nau.sticre, 14 {1913), No. 1, pp. 1-8; ahs. in Jour. Compar. Path, 

 and Ther., 21 {1914), No. 2, pp. 175, 116). — The author's experiments show 

 that the pig does not possess an absolute immunity. 



Hog cholera and preventive treatment, W. S. Robbins {Michigan Sta. Spec. 

 Bui. 65 {1914), PP- 5-22, figs. 11). — This is a descriptive account of hog cholera 

 and the manner of immunizing hogs against it. 



Roaring in the horse, H. A. Vermetjlen {Das Eehlkopfpfeifen heini Pferde. 

 Utrecht, 1914, PP- 97, pis. 6, figs. 17; rev. in Jour. Compar. Path, and Ther., 27 

 {1914), ^^0. 2, pp. 173, 174). — ^The author considers this affection to be a symp- 

 tom of a widespread disease affecting the motor nerves and their centers and 

 not one localized in the larynx. The condition is considered as a poisoning, 

 the poison being sometimes of mineral or vegetable origin but in most cases a 

 bacterial toxin or an autotoxin, the last mentioned having its origin in dis- 

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