818 EXPERIMENT STATION RECORD. 



the efftH't of the artilieial introduction of heniogloljin into cattle affected -with this 

 disease. Pure lienioglobin was purchased for this jjurpose and was prejtared in 

 tablets weighinji 2 gni. each. During the year li»().'^, 4o cattle were treated in this 

 manner, and of this nunilx-r 41 recovered completely. The 2 animals which died 

 were some distance from town and could not be treated so carefully as the other 

 cattle. The hemoglobin was dissolved in physiological salt solution in the proportion 

 of 1 to 50 during the first experiments, but later the percentage of hemoglobin was 

 considerably increased. Detailed notes are given on a number of cases in which 

 this treatment was applied. The hemoglobin was injected hypodennically ami no 

 test was made of intravenous injections. Animals submitted to this treatment recov- 

 ered very rajjidly, usually within from 5 tf) cS days. The author l^elieves that while 

 hypodermic injections of hemoglol)in may not cure all cases of Texas fever, it may 

 l)e depended uiton to give very satisfactory results in the majority of cases when 

 administered carefully. 



A disease of cattle in German East Africa resembling Texas fever, A. 

 Brauer {Berlin. Tlcrarztl. WchnscJir., 1903, No. 27, p. 4^4, fg^- 3). — In various parts 

 of (ierman East Africa the author had occasion to observe a disease which closely 

 resendjles Texas fever in clinical symptoms. The elevation of temperature is at first 

 rather slight, but finally reaches 42.8° C, or more. The pulse and respiration are 

 rapid and the rate of mortality is about 50 per cent. The blood parasites ap])ear in 

 the eai'ly stages in the form of cocci, which are present in the Ijlood corjnisdes in 

 consideral)le numbers. 



Texas fever and tsetse-fly disease in West Africa, Ziemann {Dent. Med. 

 WrhuHclu-., J9 {1903), No. 16, pp. 2S9, 290). — Redwater and blackwater are said to be 

 local names of Texas fever, and are due to symptoms which are noted in a certain 

 percentage of cases. In the control of Texas fever the author recommends the 

 destruction of the ticks on infected animals and the vaccination of calves during the 

 first two or three days of life. Vaccinated calves show small parasites in a typical 

 form in the blood within five or six days after vaccination, \mi do not show 

 hemoglobinuria or other symptoms of the disease. As a result of vaccination, a 

 high grade of immunity is sliown toward natural infection. Notes are also presented 

 on the ])revalence of tsetse-fly disease and bovine malaria in West Africa. 



Tsetse-fly disease in Kamerun, Ziemann {Deut. Med. Wchnschr., 29 {1903), No. 

 15, pp. 268, 269). — During a study of this region with reference to the occurrence of 

 tsetse-fly disease, the author found that the disease prevailed greatly in the interior, 

 while the coast' region was uninfected. Attention is therefore called to the desira- 

 bility of regulating traffic in domesticated animals between these two regions. It is 

 stated that the tsetse-fly disease is one of the chief causes of the present unthrifty 

 condition of animal industry in Kamerun. 



The susceptibility of mammals to tsetse-fly disease, E. Martini ( Dent. Med. 

 Wchmchr., 29 {1903) , No. 32, pp. 573-575, fig. 1).— Tsetse-fly disease has already been 

 shown to be infectious for most of the larger domef?ticated mammals, and also for 

 the small experimental animals. The author tried a number of experiments in the 

 inoculation of goats and zebras, and found that these animals were subject to a fatal 

 form f)f the disease. 



The role of ticks in the propagation of piroplasmoses, Meonin ( C'ompl. Rend. 

 Sor. Biol. Pons, 55 {1903), Nos. 1, ),j,. 4-0; 4, pp. 147-14S; 5, pp. 175, i76-).— The 

 author's investigations related to carceag of sheep and other protozoan diseases, and 

 led him to the conclusion that ticks were as a rule not responsible for carrying these 

 diseases. It is argued that the adult ft-male is the only form which can transmit the 

 disease, and that after it once detaches itself from an animal it does not seek for 

 another host. It appears doubtful to the author, therefore, whether ticks can be 

 c(jnsidered as agents ui the transmission of these diseases. It is urged that attention 

 should be directed to the possil)le agency of certain biting Diptera. 



