910 EXPERIMENT STATION RECORD. 



Statistics based on slaughter findings in 1902 showed that the number of 

 tuberculous hop-; was about 2.2 per cent. Among cattle, however, the disease 

 prevails extensively. The conditions in Hungary seem to make it desirable to 

 apply Bang's method in the eradication of the disease, and satisfactory results 

 have been obtained from the use of this method on a number of estates. Sta- 

 tistics are given showing the distribution of the disease on these estates. 



Von Behring's method of immunization of young cattle against tubercu- 

 losis, C. Guerix (Presse Med. [Paris], 1906, No. 2, pp. 13, U t ). — The author 

 reviews experiments thus far carried out with von Behring's method of vac- 

 cination by various investigators, including Schlegel, Eber, Loreuz, Vallee, 

 Klimmer, Homer. Ruppel, Pearson, Arloing, et al. It appears from a comparison 

 of the results obtained by these different investigators that von Behring's 

 method is not dangerous to young cattle and that an effective immunity is 

 thereby brought about. This immunity has been tested by subjecting the 

 animal to exposure much more severe than would ever occur under natural 

 conditions. 



The properties of local toxins of the tubercle bacillus, I'. Armand-Delille 

 and Huet (Compt. Rend. Soc. Biol. [Paris], 59 (1905), No. 31, pp. 656-658).— 

 A study of local toxins produced by the tubercle bacillus indicated that such 

 toxins in rabbits and guinea pigs did not produce an elevation of temperature 

 greater that 0.1 to 0.5° C. Such toxins inoculated into newborn animals also 

 failed to produce a greater elevation of temperature. 



Acid-resisting properties of fatty acids in tubercle bacilli, J. Camus and 

 P. Pagniez {Compt. Rend. Soc. Biol. [Paris], 59 (1905), No. 38, pp. 101-10 _'/).— 

 The authors made extensive experiments in testing the effect upon tubercle 

 bacilli of the removal of their content of fatty acids. It was found that tubercle 

 bacilli thus treated lost the power of resisting acids. 



Experimental transmission of tuberculosis to anthropoid apes, vox Dun- 

 gern (Munchen. Med. Wchnschr., 53 (1906), No. 1, pp. ^-1). — A brief review is 

 presented of the literature relating to this subject. 



A number of gibbons were captured and inoculated with tubercle bacilli of 

 human and bovine origin in doses of 0.01 gm. subcutaneously. Among the apes 

 used in the experiment, five inoculated with bovine bacilli died within 35 to 65 

 days and three which received human tubercle bacilli died within 37 to 63 days. 

 No difference whatever was observed in the action of the bovine and human 

 tubercle bacilli. Comparative feeding experiments with gibbons also failed to 

 show any difference between the two kinds of tubercle bacilli, since cases of 

 generalized tuberculosis developed after feeding on either kind of the bacillus. ^ 



Tuberculous spondylitis in cows, O. Stenstrom (Ztsclir. Tiermed., 10(1906), 

 No. 1-2, pp. 133-131. figs. 3). — Recently several cases have been reported of this 

 form of tuberculosis in cattle. The author describes the symptoms as observed 

 in a few instances Together with notes on the pathological anatomy. 



Milk fever, its causes, symptoms, and successful treatment, J. Spencer 

 (Virginia 8ta. Bui. 158, pp. 61-19, figs. 2).— The author discusses briefly the 

 symptoms, causes, and treatment of this disease. 



The most effective treatment thus far discovered consists in pumping atmos- 

 pheric air into the udder until this organ is tightly distended. This method 

 has been successfully used at the Virginia Station, and a suitable apparatus for 

 this purpose is described and illustrated. Detailed clinical notes are given on 

 4 cases, in 3 of which a complete recovery took place, while in the fourth case 

 the treatment was not begun until the disease had progressed too far. 



In order to prevent the development of milk fever, the author recommends 

 that dairy cows should be compelled to take considerable exercise immediately 



