VETERINARY MEDICINE. 281 



for antituborfulin. itass into llio Inlioi-culous orK.'in and liopomo combinod with 

 the iuititnbcrculin. The spccilic reaction of tulKTculous tissue, tlierefore. talces 

 phice on account of the fact that tlie tuljerculin is attracted by the antitiiber- 

 culin into tlu' tuiierculous tissue and i)econies localized in such structures. 



The virulence of tubercle bacilli, A. Marmobkk '{Berlin. Klin. Wcliiixclir., 

 J/S (liJIld), Xo. 11. ]ii). 328, 329). — One of the dithculties always incur '-ed in work 

 with tui)ercle i)acilli is found in determining their virulence. The author at- 

 tempted to work out an original method of securing evidence of slight variation 

 in the virulence of different cultures of tu])ercle bacilli. For this i)urpose white 

 mice were selected and on account of tlieii- high r(>sistancc to tiie tubercle 

 bacillus were i)reviously treated with injections of (luinin chlorate. This drug 

 has the effect of i)aralyzing the white blood corpuscles so that the organism v^^as 

 less resistant to infection. During these experiments it was found that the 

 virulence of tnlu'rcle bacilli depends primarily vipou the age of the culture ami 

 grows less as the cnltui'e becomes older. 



The resistance of tubercle bacilli to acid, C. Ciaccio {Conipt. Rend. Soc. 

 Biol [I'ltris], 60 (l'J(HS), Xo. 12, pp. 585, 586). — It is freciuently stated that the 

 acid resistance of the tubercle bacillus is due to the presence of a fatty acid in 

 the body of the bacillus. Ac<'ording to the author's investigations, however, 

 while the tubercle bacillus does contain fatty substances the si)ecif!c coloration 

 of the bacillus and its acid resistance is n(jt due to fatty acids, but to some 

 other substance. 



The homogenization of acid-resistant bacilli, L. Kauwacki {Zts-chr. Tuher- 

 kulose, 9 {1906), Xo. ,i, pp. 226-228). — In homogenizing tubercle bacilli of va- 

 rious sources, the best results are obtained when potatoes and diluted serum are 

 used in the place of glycerinated bouillon. Homogeneous cultures of tubercle 

 bacilli when transferred from one serum medium to another have a tendency 

 to develop flocculent deposits. The boyine tubercle bacillus appears to l)e quite 

 diflicult to homogenize and this may be taken as a rather constant character- 

 istic of the bacillus. 



Anthrax, B. V. Fursenko (Arcli.Vet. Naiik [Ni. Petcrsh.], .36 {1906), Xo. 6, 

 pp. S9.3-Ji02. fifj. 1). — A study was made of the behavior of anthrax in pure 

 cultures and of the progress of the disease after the inoculation of rabbits, par- 

 ticular attention being given to the localization of the bacilli in affected animals. 



Actinomycosis or lumpy jaw, D. E. Salmon and T. Smith {U. S. Dept. 

 Aflr., Bur. Anini. Indus. Circ. 96, ]ip. 10). — This is a reprint, with a slight re- 

 vision, from the Siiccial Ueport on the Diseases of Cattle (E. S. R., 10, p. 708). 



False foot-and-mouth disease, .M. Mi'iller {Dent. Tierdrztl. Wchnschr., I't 

 {1906), Xo. 28, pp. .?.i//, ,].i5). — The author observed several cases of mouth dis- 

 ease in cattle. The symptoms to be seen in the mucous membrane of the mouth 

 resembled somewh:it those of true foot-and-mouth disease, but were found to 

 be due to the si)ines of Oronis spinosa which occurred in considerable quantity 

 in the hay fed to the cattle. 



Calf scours: A new method of treatment, L. A. Klein {South Carolina Sta. 

 Bui. 122, pp. 9).— On account of the general importance and prevalence of 

 scours among calves fed on skim milk, the author tested the value of formalin 

 added to the milk before feeding to the calves. 



In these experiments 12 calves were treated by adding formalin to the milk 

 at the rate of 1 part to 4,000. Eleven calves recovered without any further 

 treatment— 7 on the second day, 8 on the third, and 1 on the ninth. In one case 

 it was found necessary to administer castor oil, creolfn, and subnitrate of 

 bismuth before a complete recovery was brought about. In :\ cases of scours 

 in calves running at pasture and receiving grain at the same time the formalin 

 treatment did not prove effective. 



