788 EXPERIMENT STATION RECORD. 



The value of the proteolytic reaction, J. Vass {Orvosi Hetilap, 1908, No. 

 24, pp. 403, 404; abs. in Berlin. Tierdrztl. Wchnschr., 26 (1910), Mo. 28, pp. 567, 

 568). — The proteolytic reaction for differentiating tuberculous from nontuber- 

 culous pus, while not applicable in every case, will undoubtedly determine 

 whether or not the process is recent or chronic. The red color with Millon's 

 reagent and positive proteolysis of the nutrient media with nontubei'culous pus 

 and the negative results with tuberculous pus are obtained sufficiently often to 

 warrant the use of the test. 



About tuberculosis serum and tuberculosis serovaccine, W. G. Ruppel 

 (Berlin. Tierdrztl. Wchnschr., 26 (1910), No. 25, pp. J,95, J,96).—A resume of the 

 standards for the various tubercle bacilli products utilized in diagnosing and 

 immunizing. 



Pyemic arthritis and the use of nuclein solution in its treatment, J. H. 

 Jefferson (Amcr. Vet. Rev., 31 (1910), No. 3, pp. 365-368). — The case here re- 

 ported made a good recovery following the use of nuclein. 



A study of the mode of action of gastrotoxin and the healing' of gastro- 

 toxic ulcers, C. Bolton (Jour. Path, and Bad., IJ, (1910), No. .',, pp. 418-^31, 

 pi. 1). — The author has previously demonstrated that on immunizing a rabbit 

 with gastric cells from a guinea pig or ratibit. the serum from this immunized 

 animal, when injected into a guinea pig's peritoneum, produced a generalized 

 toxemia with a necrosis of the mucosa of the stomach. This work deals with the 

 way that the necrotic changes are produced and the changes which subsequently 

 occur in the ulcers under normal and patbologicnl conditions. 



Tests in regard to the so-called mother vaccination substances against calf 

 mortality (white scours and calf pneumonia) and against white scours and 

 swine plague, F. M. Schmitt (Ztsclu: Iiifcktionskrank. u. Hijff. Haustiere, 

 7 (1910), No. 1-2, pp. 71-96). — Tests to ascertain the value of the substances 

 employed for vaccinating pregnant mothers for the purpose of conferring im- 

 munity on the offspring are reported. 



The results obtained with the white scour bacillus extract and 91 bovines, with 

 60 hogs and the vaccine against swine plague, and a number of control animals 

 which were injected with a 0.5 per cent aqueous solution of carbolic acid were 

 negative. 



The author also draws attention to the fact that many of the vaccines put on 

 the market by manufacturers of biological products are insufficiently tested both 

 in the laboratory and in practice. 



Observations of the rectal temperature of healthy cattle and a contribu- 

 tion to the question of predetermination of the time of birth with the cow, 

 E. Webee (Deut. Tierdrztl. Wchnschr., 18 (1910), Nos. 10, pp. lJi3-lI,6; 11, pp. 

 157-162; 12, pp. 173-177; ahs. in Vet. Rec, 22 (1910), No. 1139, p. 726).— The 

 results of extensive observations reported have been summarized as follows : 



The bovine rectal temperature rises after eating, the average rise being 0.4.5° F. 

 The essential factor in determining the degree of elevation in individuals is the 

 muscular activity involved in eatiug. Draughts of cold water do not influence 

 the rectal temperature in cattle; neither does milking. Brisk movement for a 

 quai'ter of an hour causes a rise in temperature averaging 0.9°. 



The rectal temperature of the cow rises during pregnancy, at first slightly, 

 but very markedly during the last month of the period. The average rise dur- 

 ing pregnancy, taking the evening temperature as a basis, is 1.6°. This high 

 temperature begins to fall, suddenly, markedly, and continuously, from 52 to 15 

 hours (28 hours ou an average) before calving. During the hours and days fol- 

 lowing parturition, the temperature under normal circumstances shows a 

 slight undulatory movement, due to the absorption of katabolic products. 



