VETERINARY MEDICINE. 183 



The greatest growth was noted in the ammonium phosphate flask. The flask 

 containing the sodium chlorid in addition showed a lesser growth, but it was 

 greater than the flask containing potassium chlorid; consequently the presence 

 of potassium, sodium, chlorin, or sulphur is deemed unnecessary for the growth 

 of the tubercle bacillus. The synthetic tuberculin so obtained was found to be 

 as active as that prepared in an asparagin medium. 



Experiments in regard to the inhalation of tuberculous material from 

 man by the cat, P. Ciiausse {Compt. Rend. Soc. Biol. lPa)is], 12 {1912), 

 Xo. 2, pp. 50-52; abs. in CentU. BaJct. [etc.], 1. Abt., Ref., 52 {1912), No. U, 

 p. 426)- — The inhalation tests, which are a continuation of those previously 

 reported (E. S. R., 26, p. 179; 29, p. ITS), were conducted in a small specially 

 constructed chamber, with cats of various ages kept side by side with guinea 

 pigs and dogs. Out of 14 cats only 4 became infected. The tubercular changes 

 produced were in most instances only slight but in others quite extensive. 

 According to this there soems to be a great difference in regard to the recep- 

 tivity of cats to this disease. 



Two cases of spontaneous tuberculosis in the rabbit caused by the avian 

 tubercle bacillus, L. Codbett {Jour. Compar. Path, and Titer., 26 {1913), No. 1, 

 pp. 33-JfO, figs. 4). — "As tuberculosis caused by one or the other type of mam- 

 malian tubercle bacilli is not confined entirely to mammals, but may occur in 

 the parrot, the raven (Rabinowitsch), and probably also in the canary and 

 sparrow, so tuberculosis caused by the avian tubercle bacillus is not limited to 

 birds, but may sometimes be found in the pig, the mouse, and perhaps in man 

 and the ape also." 



In this paper two cases of natural infection of rabbits, which were kept in the 

 same yard with a number of guinea pigs and tubercular fowls, are described. 

 Cultural investigations and the results of autopsies are included. 



Subcutaneous tuberculosis in bovines, C. Perard and G. Ramon {BuI. Soc. 

 Cent. Al^d. V4t., 90 {1913), No. 8, pp. 167-174).— Under the name " subcutaneous 

 tuberculosis " the authors designate not only the disease caused by hypodermic 

 Injections but also the condition which is produced by the process of extension 

 whereby the organisms enter the superficial fibers of the muscles. The lesions 

 in this area were found to differ markedly in their macroscopic aspects from 

 those usually noted in classical tuberculosis. They resemble somewhat the 

 metastases which occur in cancer, and those in sporotrichoses or blastomycoses. 

 The diagnosis on the cadaver is rather diflicult. 



The findings with some cnses of this variety of tuberculosis are given. 



Investigations in regard to the specific action of tuberculosis serum by 

 mixing tuberculin and tuberculosis serum, A. Sata {Zi^clir. Immunitatsf. u. 

 Expt. Ther., I, Orig., 17 {1913), No. 1, pp. 84-98, pi. 1).—By simply mixing old 

 tuberculin or powdered tubercle bacilli with tuberculosis serum under certain 

 quantitative and other conditions and at a temperature of 38° C, it is possible 

 to produce a poison in vitro which, with sound guinea pigs, will give the char- 

 acteristic tuberculin reactions. The reactions so produced are characterized by 

 a rise in temperature, resulting in the classical anai)hylactic death. 



By keeping the toxin for several days in the incubator, its toxicity is 

 destroyed, and consequently it will not be lethal for guinea pigs and will not 

 yield the typical reactions on injection. In this case there jirobably occurs the 

 scission of the toxic substance, which is supposed to go on in two plinses. 



Passive transference of tuberculin sensitiveness by tuberculosis serum, 

 and the valuation of the serum by this method, A. Sata {Ztschr. 

 Immnnitdtsf. it. Expt. Ther., I, Orig., 17 {1913), No. 1, pp. 62-75, figs. 5).— It is 

 possible to produce a hypersensitiveness in guinea pigs by treating them with 

 tuberculosis serum. The passive immunity so produced is not only character- 



