102 EXPERIMENT STATION RECORD. 



190S, No. 9, pp. W).— This disease firsl appeared in the Philippines in cattle imported 

 from Shanghai in 1903. 



Notes are given on the history of this outbreak and on the distribution of the dis- 

 ease throughoul the world. The clinical symptoms and lesion?- in 13 cases in carabaos 

 are described in detail. Acute and chronic cases were noted. Classified according 

 to pathological lesions the disease presents two types, the pulmonary and the septi- 

 cemic. The same organism was isolated from both types of cases. In laboratory 

 experiments, this organism proved pathogenic for guinea pigs, rabbits, monkey-. 

 do<_'s, and chickens. Thus far the authors have been unable to obtain any serum of 

 value in treating or preventing the disease. 



Some pulmonary lesions produced by the bacillus of hemorrhagic septi- 

 cemia of carabaos, P. (i. Woolley ( Philippine Dept. Int., Bureau Govt. Lab. [Pw6.], 

 1903, No. 12, pp. 11). — The different kinds of pathological lesions produced by this 

 disease are described in detail. In one carabao the lesions were almost identical 

 with those of pleuro-pneumonia. Smear cultures from the cardiac blood killed 

 guinea pigs within 20 hours. 



In another case there were small pericardial hemorrhages about the base of the 

 heart. The organism isolated from this case was pathogenic for monkeys, small 

 birds, guinea pigs, and rabbits. In a third case in a horse the lungs showed con- 

 gestion, the air cells were distended, and the fihrous tissue was increased in amount. 

 The author is unable to explain how the organism of hemorrhagic septicemia gained 

 access to the lungs in these 3 cases. 



Bronchitis due to barley chaff, Behrens (Dcut. Tierdrztl. Wchnschr., 12 (1904), 

 No. 7, pp. 62, 63). — An outbreak of bronchitis in sheep led to the institution of 

 experiments to determine whether dry cotton-seed meal could cause the disease. 

 Negative results were obtained from these experiments with sheep. Further obser- 

 vations, however, showed conclusively that the inhalation of barley chaff may cause 

 fatal bronchitis in cattle. 



In one case due to this cause the lungs were found to be hepatized, especially in 

 the anterior portions. An examination of microscopic preparations from the lungs 

 and bronchi disclosed the fact that the tissue had been punctured and irritated by 

 fragments of barley chaff. 



Sheep scab in Tasmania (Agr. Jour. Cape Good Hope, 24 (1904), No. 6, pp. 730- 

 732) . — A brief statement of how the disease was exterminated in Tasmania within a 

 period of 8 years. The dip used was made of lime and sulphur. 



Necrosing mastitis, Zobel (Deut. Tierdrztl. Wchnschr., 12 (1904), No. 11, pp. 101, 

 102, fig. 1). — The symptoms and pathological anatomy of this disease are described 

 with especial reference to a case in a goat. This case was of 13 weeks' standing and 

 a large abscess had formed and broken. The case was diagnosed as parenchymatous 

 mastitis. 



Horse sickness and its prevention, R. Koch (Agr. Jour. Cape Good Hope, 24 

 (1904), No. 6, pp. 663-675) . — The author found that in order to secure uniform results 

 in the production of artificial immunity to horse sickness it is necessary to give care- 

 ful attention to the preparation of the virus and serum. Both of these products can 

 be preserved for a long period. 



For the sake of economy it is desirable that the virus be just strong enough to 

 cause an attack of the disease, and that the serum be capable of holding the disease 

 within safe limits. When this method is further perfected the author hopes that the 

 process of immunizing susceptible horses will not require more than 4 to 6 w r eeks. 

 Detailed directions are given for the preparation of both virus and serum. 



Horse sickness, R. Koch (Natal Agr. Jour, and Min. Rec, 7 (1904), No. 5, pp. 

 479-481). — Immune horses were secured and inoculated with virulent blood in order 

 to intensify the immunity. A maximum dose of 2,000 cc. was injected without bad 



