VETERINARY SCIENCE AND PRACTICE. 819 



The article is of a highly controversial nature, and an attempt is made to throw 

 doubt upon the arguments acivanced by A. Laveran in favor of the agency of ticks 

 in transmitting these diseases. The species of ticks considered in the controversy 

 are lihlpirt'phabis nnuitlntns, R. bursa, and E. sanguineus. 



The agency of ticks in the propagation of piroplasmoses, A. Laveran (Co»ij3<. 

 Rend. Sue. Biol. Paris, 55 {1903), No. 2, pp. 61-63). — The author agrees with Megnin 

 to the extent of admitting that a large proportion of the adult female ticks after they 

 have fallen to the ground do not seek for another victim. It is argued, however, 

 that the agency of ticks in the transmission of certain jirotozoan diseases, such as 

 Texas fever, must be admitted, since it has been demonstrated by numerous observa- 

 tions, and the probability of ticks being instrumental in transmitting other protozoan 

 diseases is greatly strengthened by recent investigations. 



Piroplasmosis and hemoglobinemia in dogs, G. Szoyk.v [Dent. Tierarzfl. 

 Wchnschr., 11 {1903), No. 25, pp. 234-^36) .—The author had occasion to examine 2 

 cases of hemoglobinemia in dogs. The clinical symptoms of these cases are described 

 in detail. Blood was taken from both dogs and used in inoculation experiments. 

 The results of these experiments showed that the blood was not virulent and that no 

 blood jiarasites were present. The disease was therefore not due to piroplasma, and 

 the author consi<lers it necessary to assume that dogs are subject to a hemoglobinemia 

 which is clinically not distinguishable from the form caused by piroplasma. 



The role of ticks in the development of carceag, Motas ( Cumpt. Rnnl. Soc. 

 Biol. Paris, 55 {1903), No. 14, }>p- 501-504). — According to the author's experiments, 

 the larvaj and nymphs of Rhipicephahis bursa, even when born of mother ticks 

 gorged with the blood of diseased sheep, are incapable of transmitting carceag. It 

 is only the sexually mature tick which is capable of transmitting the disease. Eggs 

 obtained from ticks gorged with the blood of diseased sheep contain the specific 

 protozoan, but this organism must undergo further development before it is capable 

 of producing the disease. 



Serum therapy for foot-and-mouth disease, 1). Berxardixi {Cim. Vet., .26 

 {1903), No. 18, pp. 105-107). — An outline is given of the method used by Nocard in 

 controlling this disease liy vaccination. In the author's opinion the immunizing 

 effect of a vaccine persists only for a short time. 



The treatment of aphthous and healthy cattle and horses with corrosive 

 sublimate, F. Boschetti and A. Titta {Gior. R. Soc. Accad. Vet. Ital., 52 {1903), 

 Nos. 8, pp. 182-184; 9, pp. 198-203; 10, pp. 230-232; 11, pp. ^^i-t^.^).— Healthy cat- 

 tle, also cattle affected with foot-and-mouth disease were treated with hypodermic 

 and intratracheal injections of corrosive sublimate. The same drug was administered 

 to horses l)y the intratracheal, hypodermic, and intravenous methods. Detailed 

 notes are given on the reactions produced in the various experimental animals and 

 the pathological lesions produced ])y the corrosive sublimate are carefully described. 



As a result of the authors' experiments it is concluded that corrosive sublimate in 

 the treatment of foot-and-mouth disease in cattle, whether administered by the intra- 

 venous, hypodermic, or intratracheal methods, and whether given in small, medium, 

 or large doses, produces an elevation of temj^erature within from 15 to 30 minutes, 

 instead of a lowering of temperature as maintained by Baccelli. General trembling 

 and nervous disturbances together with pathological lesions are also observed. The 

 toxic effects of corrosive sublimate are very marked in some cases, and include the 

 general symptoms of mercurialism, such as inappetence, prostration, and tiuctuations 

 in temperature. The results are the same by whatever method the corrosive subli- 

 mate is administered. 



The spread of the infectious processes is not checked by the administration of the 

 corrosive sublimate. It was also found that different animals reacted differently to 

 the drug, so that the doses could not safely lie measured out according to the weight 

 of the animal. Corrosive sublimate was endured rather better by horses than by 



