VETERINARY MEDICINE. 685 



tive effect. For young auiuials the subcutaneous vaccination gives better re- 

 sults than the intravenous. This vaccination confers imiuunlty only after 2 

 luontlis. during which period the animals must be Isolated and suckled by 

 healthy cows or fed sterilized milk. 



Vaccination against tuberculosis of cattle, S. Arloing {Rev. Gen. MM. 

 Vet., U (1900). \o. 168, />;>. 78 1-7 D-'i).— This is a paper presented at the meet- 

 ing of the International Veterinary Congress held at The Hague in September, 

 1909, relating to the practical results which have been obtained in immunizing 

 cattle. 



Diffuse hypertrophy of the mucous membrane of the intestines of cattle 

 caused by acid-fast bacteria [Johnes disease], K. F. Meyer {Uhcr die dttreh 

 saurcfestc Bakterien hervorgcrufene diffuse Hypertrophic der Darmschleim- 

 haut des Riiides. Jena, l'J08, pp. 107, pis. 3, fig. 1; rev. in Rev. (Jc'n. Med. Vet., 

 15 (.1910), No. 170, pp. 91-93).— The author's investigations confirm those of 

 Bang on chronic pseudotubei-culous enteritis of cattle. The affection is said to 

 occur very frequently in the cantons of Bern, Zurich, Freiburg, Waadt, and 

 Aargau. Switzerland. 



Hog' cholera and vacciation, F. S. Schoenleber {Kansas F^ta. Bui. 163, fi>. 

 259-276, figs. 12). — A detailed account of the method of production of hog chol- 

 era serum and of its use in inununlzlng against the disease. It is stated that 

 during 1910 the station expects to produce over lOO.ooO doses. 



The frequence and nature of cystic kidneys in the pig, Marciiesini and 

 Bartolini {Ahs. in Vet. Rcc, 22 {1910), Nos. 1122, p. J,55 ; 1123, pp. J,69, //70).— 

 Within a period of 2 years the authors have examined the kidneys of 80,000 

 pigs killed in the abattoir at Rome and studied cystic kidneys, which have, by 

 many observers, been confounded with hydronephrosis. From 4 to 5 per cent 

 of the pigs examined were affected, sometimes only one kidney being cystic and 

 sometimes both. 



Equine piroplasmosis in Russia and the role of the tick Dermacentor 

 reticulatus in its spread, E. J. Marzinowski and A. W. Bielitzer {Ztsehr. 

 Byg. u. Infektionskrank., 63 {1909), No. 1, pp. 17-33, pis. 6; abs. in Jour. Trop. 

 Yet. Sci., 5 {1910), No. 1, pp. 200, 201).— This disease was first observed in Rus- 

 sia in the Smolensk government by Michailof in 1902. In 1906, it was reported 

 by Bielitzer from the Ryasan goveiniment. It also occurs in the Tambov gov- 

 ernment and from precinct reports is known to frequently occur in the Moscow, 

 Vladimir, and Ufa governments. 



The disease has been found to be transmitted by D. reticulatus. Larvse 

 placed upon rabbits attached to the eyelids and ears, engorged, and dropped 

 in 2 or 3 days. Larvjie which became quiescent June 26 emerged as nymphs 

 July 1. Five engorged nymphs removed from the host July 12-13 emerged 

 as adults on July 29. It is stated that larvse may live 6 months while waiting 

 for a host. Some 500 seed ticks were placed upon a horse, but none engorged 

 and no piroplasms appeared in the blood. The authors conclude that the larvte 

 were unable to penetrate the skin and that in nature they probably engorge 

 upon small animals. Because of the scarcity of nymphs no transmission ex- 

 periments were conducted with that stage. 



Horses were subcutaneously injectetl with a solution in which infectetl larvse 

 had been crushed, but no piroplasms appeared in the blood. Piroplasms ap- 

 peared in the blood 12 days after the first adult was placed upon the host. The 

 disease was also reproduced in 3 cases by the injection of infected blood, all 

 of the animals recovering without treatment. Attempted transmission to the 

 rabbit, guinea pig, and puppy, and the culture of the parasite, failed. In treat- 

 ment, digitalis and camphorated oil were used as heart stimulants, alkalies 

 per OS and per auum^ and against the parasites guinin, mercury, and arsenic. 



