924 EXPEKIMENT STATION KECORD. 



an epithelial dii^ease and makes its appearance on the surface of the body. It is a 

 warm weather disease and prevails most extensively during wet seasons. Farcy 

 usually affects the lymphatic system and may therefore he superticial or deep. 

 The discharge from farcy abscesses is extremely cohesive. Furunculus usually 

 appears below the fetlock and affects the coronary band. It is ushered in with a 

 chill and the subsequent temperature varies from 105 to 107°. The most successful 

 treatment for bursattee in the author's experiments was blistering with a mixture 

 of cantharides and biniodid of mercury repeated every 2 or 3 days. 



Epizootic abortion in mares, J. Guillerey {Arch. Wiss. ?j. Prakt. Thierh., S:> 

 {1903), No. 1-2, p-p. 37-68, Jigs. 4)- — The literature of this subject is critically dis- 

 cussed in connection with a bibliography. The author made careful observations on 

 a large number of cases and the usual sjanptoms are described, together with the 

 more common complications. Special attention is given to the period of incu]>a1.ion, 

 means of dissemination, etiology, and treatment. In preventing the persistence and 

 spread of this disease it is considered absolutely necessary to emplo}' the most rigid 

 antiseptic treatment to all infected animals. 



Nagana and mal de caderas as two distinct diseases, A. Laverax and 

 F. Mesxil {Compt. Bend. Acad. Sei Paris, 135 {1902) , No. 20, pp. 838-840) . —According 

 to the authors' opinions these 2 diseases are distinct, for the following reasons: There 

 are constant morphological differences between Trypanosoma hrucei and T. equhnnn; 

 animals immunized against nagana are still susceptible to mal de caderas; and the 

 serum of animals immunized against nagana is not active toward T. equinvm. 



Investigations on the treatment and prevention of nagana, A. Laveran and 

 F. :\Iesxil {Ami. TnM. Pasteur, 16 {1902), No. 11, pp. 785-S17).—X historical account 

 of previous investigations on this subject is presented, in connection with a critical 

 review of the literature relating to nagana. The chief objects of the authors' experi- 

 ments were to test the problem of treating nagana with chemical products or with 

 sera, including human serum and the serum of animals which had been rendered 

 immune to nagana. The experiments also included attempts to immmiize animals 

 against the disease. A considerable number of chemical suljstances were experi- 

 mented with for determining their value in the treatment of the disease. As a result 

 of these experiments it was found that arsenious acid and human serum are the only 

 substances which possess any great value in the treatment of nagana. Arsenious 

 acid was found to prolong the life of affected animals. The animals treated with 

 this chemical, however, did not always recover, and in some instances served as a 

 source of infection for healthy animals. Human serum was found to produce a com- 

 plete recovery in mice. The treatment of large animals, however, by this method 

 is impractical on account of the large doses of serum which are required. 



Statistics as to the color of surra victims, C. Nockolds {Arner. Yet. Per., 26 

 {1902), No. 9, pp. 850-854). — Observations on the appearance of surra in the Philip- 

 pine Islands indicate that mules are more susceiatible to this disease than horses and 

 that light colored animals are attacked more frequently than dark colored animals. 



Notes on the tsetse fly and the surra disease in German East Africa, F. 

 Stuhlmaxx {Ber. Land u. Forstw. Deutsch-Ostafrika, 1 {1902), No. 2, pp. 137-153, pi. 

 1 , figs. 4) .—The author gives an account of investigations which he made regarding 

 surra in various parts of German East Africa. Especial attention is given to a detailed 

 description of the tsetse fly in all its stages and brief notes are also presented on cer- 

 tain related species, such as Sto>iiox>/-'< calcitrans. 



The occurrence of Glossina tabaniformis in Dar-es-Salaam, F. Stuhlmaxx 

 {Ber. Land n. Forstw. Detdsch-Ostafrika, 1 {1902), No. 2, pp. 173-175, fig. i).— The 

 insect is described in detail and the measurements of its various anatomical structures 

 are compared with those of the tsetse fly. The question is raised whether this species 

 may also be instrumental in carrying surra. It appears from observations thus far 

 made that this is not the case. 



