474 EXPERIMENT STATION RECOED. 



VETERINARY lODICINE. 



The importance of enzyms and enzyni reactions in medicine and surgery, 

 W. G. Lylic and P. A. Kobkk {-lour. Indus, timi En(jin. ('Iicnt., G (l!JI-'f), Xo. JO, 

 pp. 855, 856). — A pai)er on the topic which was presented before the New York 

 section of the American Chemical Society in July, 1914. 



The diagnosis of pregnancy in the bovine, sheep, and goat hy the dialysis 

 method, J. IIiciitek and J. 8chwarz (Ztschi'. Tienned., 11 (1913), No. 10, pp. 

 J,n-.'i58; abs. in Berlin. Tierdrztl. Wchmchr., 29 (1913), No. 51, pp. 913, 9U).— 

 With the dialysis method (E. S. R., 31, p. 278) it was possible to note placenta- 

 cleaving: protective ferments in the blood serum of pregnant bo vines, sheep, 

 and goats in the sixth week of pregnancy and upwards. From the fourth to the 

 eighth month of pregnancy the diagnosis can be made in 100 per cent of the 

 cases but during the ninth month it becomes uncertain. Within the first four 

 weeks post parturition the ferments can also be noted in the sera of the ani- 

 mals mentioned, and in some cases for a much longer period. Inaccurate re- 

 sults are obtained if the directions are not strictly adhered to. 



Organic arsenic preparations and their cheniotherapeutic significance, M. 

 NiERENSTEiN (Sdmiul. Chcm. u. Chein. Tech. Vortmgc, 19 (1912), No. 2-3, pp. 

 .'i7-140). — This deals with the history and chemistry and the various theories 

 (Ehrlich's reduction theory, Breinl and Nierenstein's oxidation theoi'y, and 

 Uhlenhuth's partial cell function theory) relating to the action of arsenicals as 

 antiparasiticides in spirochete, trypanosome, and similar diseases. The pub- 

 lication is one of the collection of chemical and chemotechnical lectures edited 

 by F. B. Ahrens. 



The biological decomposition of arsenic compounds, H. Huss (Ztschi: Hyg. 

 u. Infcktionskranlc, 16 (1914), No. 3, pp. 361-406; nhs. in Chem. Zentbh. 1914, 

 I, No. 8, pp. 801, 802). — Not many fungi have the power of decomposing arsenic 

 compounds. Under favorable conditions of air, moisture, and with a suitable 

 substratum, some evolve gases which do not appear to be very toxic. The insolu- 

 ble compounds and those sparingly soluble are decomposed w^ith greater diffi- 

 culty than the soluble compounds. These " arsenic fungi " are found in all 

 manner of places, but in small number compared with the other micro-organisms 

 which accompany them. Penicillium brevicaule, one of the most active, was not 

 found in living rooms, w^hereas Actinomyces sp., which is quite as active, fre- 

 quently occurs in isolated groups on moist walls and other places. 



Principal poisonous plants of the western stock ranges, C. D. Marsh ( U. S. 

 Dept. Agr., Bur. Plant Indus., Principal Poisonous Plants of the Western Stock 

 Ranges (1914), PP- 13, figs. 6). — This circular presents photographic illustrations 

 and brief descriptions of poisonous plants on the western stock ranges which 

 it is most necessary for the stockman to avoid, namely, Zygadenus, or death 

 camus; lupine; loco, white loco, or rattleweed; tall larkspur; low larkspur; 

 and eicuta, or water hemlock. 



Suckered roundworms from India and Ceylon, C. Lane (Indian Jmir. Med. 

 Research, 2 (1914), No. 2. pp. 655-669, pis. 8). — A number of genera and species 

 are described for the first time. 



Studies concerning glycosuria and diabetes, F. M. Allen (Boston, 1913. pp. 

 XVIII-\-1119, pis. S). — This large work represents the results of three years of 

 research in the laboratory of Preventive Medicine and Hygiene of the Harvard 

 University Medical School. It includes many experiments on animals and con- 

 tains an extended review of the literature. 



The microbiology of the infectious diseases of animals, J. Courmont and 

 L. Panisset (Precis dc Microbiologic dcs Maladies Infectieuses dcs Animaujp. 



