76 EXPERIMENT STATION RECORD. [Vol. 43 



Sodium compounds, previously studied as neutralizing agents (E. S. R., 35, 

 p. 277), were found to thin the cream. 



Studies on formation oi gas in sweetened condensed milk, B. W. Hammek 



(Iowa Sta. Resmrch Bui 54 {1919), pp. 211-220, flgs. 2).—X yeast, Torula 

 lactis-condensi n. sp., was isolated from sweetened condensed milk that had 

 undergone gase«us fermentation after canning. When the organism was intro- 

 duced into cans of unfermented milk of the same brand similar fermentations 

 resulted. 



The morphological, cultural, and biochemical characteristics of T. lactis- 

 condensi are described. Its assignment tf» the genus Torula is tentative. 



VETERINARY MEDICINE. 



Principles of veterinary science, F. B. Hadley (PJiiladelphia and London: 

 W. B. Savuders Co., 1920, pp. If20, fir/s. 101). — This work is an amplification of 

 the matter presented in the author's former publication on The Horse in Health 

 and Disease, previously noted (E. S. R., 34, p. 794). The first part deals with 

 the anatomy and physiology of animals (pp. 17-183), and the second part with 

 the common diseases of animals (pp. 38.5-395). 



Progress in immunity research during the war and the present status of 

 immuno- and serum- therapy, W. Eiohholz-Darmstadt {Zti^chr. Anr/eir. 

 Chmi., 32 (1919), Nos. 94, Aufsotzt., pp. 367, 368; 96, pp. 370, 37i).— This is a 

 brief survey of the progress made in Germany during the recent war in the 

 diagnosis, prophylaxis, and therapy of contagious diseases tlirough the applica- 

 tion of the results of imnuinity research. 



On the association of antitoxins with the proteins of immunized horse 

 serum, A. Homee (Biochem. Jour., 14 (1920), No. 1, pp. 42-45). — In continua- 

 tion of the studies on antitoxic sera (E. S. R., 41, p. 282), data are presented 

 on the percentage precipitation of the antitoxins of antitetanic and of antidiph- 

 theritic horse plasma by anliydrous sodium sulphate, and on the percentage of 

 the total antitoxins precipitated with salt-soluble globulins of antidysenteric and 

 antimeningitic horse .sera. 



Both in cresylised and in noncresylised plasma the precipitation of antitoxin 

 with the proteins of the euglobulin-pseudoglobulin zone was greater in anti- 

 tetanic than in antidiphtheritic plasma. The bulk of the antitoxins in anti- 

 dysenteric and antimeningitic plasma was found to be associated with the 

 proteins of the euglobidin and of the euglobulin-pseudoglobulin zones. 



" The re.sults of the present investigation are of interest, as they show that 

 the various antitoxins are adsorbed by different protein fractions of horse 

 serum, a phenomenon which can be regarded as an indication of differences in 

 the molecular composition of the respective antitoxins." 



The sterilization of lipovaccines, P. A. Lewis and F. W. Dodge (Jour. Expt. 

 Med., 31 (1920), No. 2, pp. 169-175) .—The authors refer to the methods of 

 Whitmore and Fennel (E. S. R., 38, p. 782) and of Rosenow and Osterberg 

 (E. S. R., 41, p. 377) for sterilizing lipovaccines, and suggest another method 

 which depends upon the application of dry heat to the finished product. 



The lipovaccines were prepared according to the method of Whitmore and 

 Fennel, and the finished vaccines were heated to a temperature of 130° C. for 

 3 hours in an electric oven or to 120° for 12 hours. Pneumococcus and typhoid 

 vaccines thus prepared were tested for their protective value for mice. The 

 antigenic qualities of the pneumococcus vaccine were apparently not destroyed 

 by this treatment, while those of the typhoid vaccine were greatly injured. 

 Sufficient data have not been obtained to indicate the general value of this 

 method. 



