184 EXPERIMENT STATION RECORD. [Vol. 43 



Infestation of the skin, etc., of sheep by grass seeds, S. Dodd {Jour. 

 Compar. Path, and Ther., 32 (1919), No. 2, pp. 90-95).— The condition in sheep 

 due to the penetration of the skin, etc., by certain grass seeds is said to be a 

 very common one and of some economic importance in parts of New South 

 Wales. 



Duration of immunity against hog cholera following simultaneous inocu- 

 lation of young pigs, W. B. Niles and J. H. Rietz {Jour. Anier. Vet. Med. 

 Assoc, 57 {1920), No. 2, pp. 176-182) .—This contribution from the Bureau of 

 Animal Industry, U. S. Department of Agriculture, consists of the reports of 

 12 experiments in which the efficacy of the simultaneous inoculation of young 

 pigs was tested on 171 pigs varying from 7 days to 6 weeks of age at the time 

 of the inoculation. These pigs, which were the offspring both of immune and 

 nonimmune sows, were kept from exposure to hog cholera for varying periods 

 of time, ranging from 5 months to 9 months and 26 days, and were then in- 

 jected with 5 cc. of virus. All of the pigs proved immune to hog cholera, thus 

 indicating that the simultaneous inoculation of young pigs confers a lasting 

 immunity. 



Note on the treatment of epizootic ulcerative lymphangitis of the horse, 

 A. Delmer {Rec. MM. V^t., 95 {1919), No. 15-17, pp. 1,52-459, fig. 1; ahs. in Vet. 

 Rev., 4 {1920), No. 1, p. 28). — The method of treating ulcerative lymphangitis 

 suggested by the author consists in the opening of the abscesses with the actual 

 cautery and the expression of the pus, which is caught on cotton wool in order 

 to avoid further infection of the skin. The walls of the abscess are curetted as 

 thoroughly as possible in order to remove the necrotic tissue entirely. The 

 button cautery is then applied for the destruction of organisms and the arrest 

 of hemorrhage produced by the curettage. This is followed by point firing 

 over a portion of the limb sufficient to extend well beyond that part which is 

 edematous. The punctures should involve the whole thickness of the skin 

 and the subcutaneous tissue. The part of the limb point fired should then be 

 briskly rubbed with mercurial ointment. 



The treatment of mange in equines by chloropicrin, G. Bertrand and 

 Dassonville {Compt. Rend. Acad. ScL [Paris], 169 {1919), No. 10, pp. 486- 

 489). — The treatment of mange by fumigation with sulphur dioxid known as 

 sulphuration is first described. Experiments with chloropicrin in which ani- 

 mals placed in chambers similar to those used for sulphuration were sprayed 

 by means of a syringe at the rate of 1 oz. to each 50 cu. ft. are then reported 

 upon. Horses thus treated were left in the chamber for 30 minutes and the 

 treatment repeated in from two to three weeks. The head, which escaped 

 the action of the fumes, was treated with ointment containing 100 parts by 

 weight of vaseline to 2.5 by weight of chloropicrin. This treatment proved 

 entirely successful. As compared with sulphuration it possesses a number of 

 advantage. It reduces the period of exposure from 2 hours to 30 minutes, thus 

 permitting the treatment of many more animals in the same time, is much 

 simpler, is not so destructive to the collarettes used upon the animals, is less 

 dangerous to use upon the animals, etc. The term chloropicrination is pro- 

 posed by the authors for this treatment. 



Experiments with sulphurous anhydrid in the treatment of mange in 

 mules, W. Pfenningee {Schweis. Arch. Tierheilk., 61 {1919), No. 9-10, pp. 333- 

 341 ; abs. in Vet. Rev., 4 {1920), No. 1, p. 40)- — The author reports upon the 

 sulphur dioxid treatment, for mange at the Swiss mule depot at Sitten, con- 

 ducted in sheet-iron chambers. Three hundred gm. (10.5 oz.) of sulphur was 

 burned in a sheet-iron chamber 2.15 meters long, 1.15 meters wide, and 2.25 

 meters high (about 196 cu. ft.) and after five days was repeated. In bad 



