51(5 EXPERIMENT STATIOK RECORD. 



hogs, and calves, but not for chickens. Notes are given on the behavior of the 

 organism on various cuhure media. This organism was destroyed by expo.sure for 

 12 minutes to a temperature of 58° C. or for .3 minutes to a temperature of 70° C. 

 Desiccation and exposure to <hff use light for a period of 3 days also produced sterility. 

 The organism was killed l)y treatment for .30 seconds in a 1: 10,000 solution of V)ichlorid 

 of mercury, and growth was prevented by suVjjection to a 1 : 500 solution of perman- 

 ganate of potash for 1 minute. Limewater in a 0.08 per cent solution killed the 

 organism within 3^ hours. 



A comparison was made between the organism isolated in this disease and the hog- 

 cholera bacillus, in which it was found that the organism of the cattle disease was 

 more virulent than the bacillus of hog cholera. It appears that a mutual agglutina- 

 tive reaction exists between these 2 organisms. The literature of the subject is critic- 

 ally discussed in connection with a ])rief Ijibliography. 



Hemoglobinuria of cattle in Germany, H. Kossel et al. {Arb. K. Gesundheit- 

 samte, 20 [1903), No. 1, pp. 1-77, pis. 3). — Hemogloljinuria has long been recognized 

 in cattle in Germany, and has been referred to under a large number of common 

 names. The author made an extensive investigation of this subject, including a 

 study of the symptoms, i^athological anatomy, treatment, and prevention of the dis- 

 ease. It was found that as a rule the period of incubation was about .14 days. 



A large number of inoculation experiments were made with the blood of diseased 

 animals for the purpose of determining more accurately the symptoms and patholog- 

 ical lesions of the disease. Detailed notes are given on post-mortem examinations 

 made on these cases. The blood parasite is identical with that found in Texas fever, 

 and the disease may therefore be considered as Texas fever. It may be transferred 

 to susceptible cattle by inoculation with virulent blood. 



During the authors' experiments it was found possible to maintain the blood par- 

 asites outside the body in serum containing hemoglobin for a long period. In some 

 instances the blood parasites were virulent after being preserved in this manner for 

 a period of 42 days. Inoculation experiments with muscle serum showed that the 

 blood parasites in animals affected with Texas fever remained alive only a short time 

 in the muscles. The tick which is responsible for carrying hemoglobinuria in Ger- 

 many from one animal to another is Ixodes reduvius. Detailed notes are given on 

 this tick in its various stages. Experiments showed that it was possible to transmit 

 the disease by placing infected ticks upon susceptible cattle. A large number of 

 inoculation experiments have been made in order to determine practical methods of 

 immunization against the disease. 



As a result of the authors' investigations it is recommended that the material used 

 in vaccination l)e obtained in a sterile condition, defibrinated, and jareserved in an 

 ice chest, and that it should be taken from animals only after 50 days following 

 recovery from the disease. It is also recommended that preventive inoculation be 

 made from 4 to 6 weeks before the animals are turned upon pasture and by the sub- 

 cutaneous method in doses of 5 cc. The animals should then be kept in good hygi- 

 enic conditions during the progress of the inoculation disease. 



iDiagnosis, prognosis, and treatment of actinomycosis, H. Yallee {Rev. Gin. 

 Mkl. Yk., 1 {1903), Xo. 6, i)p. 313-325, figs. A').— The author presents a detailed 

 description of the organisms of actinomycosis and actinobacillosis. The symptoms 

 of the disease are described with special reference to those which may serve for 

 differential diagnosis. Notes are also given on the beneficial effects of treatment 

 with iodid of potash. 



The disinfection of the skins of animals affected with anthrax, J. Ligxieres 

 and J. Zabala {Rev. Gen. Med. Vet, 1 {1903), No. 5, pp. 249-255). — The antiseptic sub- 

 stances with which experiments W'ere made included crude carbolic acid, lysol, coal- 

 tar products, such as cresol, creolin, acaroin, etc. Notes are given on the conditions 

 under which sporulation of the anthrax bacillus takes place. Solutions of crude 



