VETERINARY MEDICINE. 589 



on the following day. Six and one-half months later the same animal was in- 

 oculated with 5 cc. of virulent blood collected from an acute case of hog cholera 

 and there was no noticeable effect. 



The author concludes that not only did the animal still possess immunity 

 6 or 7 months after inoculation but also that this imnumity was efficient against 

 the attacks of the virus from a totally different outbreak. lie further con- 

 cludes that the "serum kept for 12 months at oi-dinary temperature was still 

 capable of protecting hogs weighing around 90 lbs. in doses of 20 cc. against a 

 fatal dose of virulent blood, though in this case it would probably have been 

 better to have increased the dose in view of the fact that the animal was slightly 

 sick for 2 days." 



Several field tests are reported, the evidence gained from which points con- 

 clusively to the efficiency of the serum in protecting hogs from hog cholera if 

 used before the animals become actually diseased. 



Contagious pneumonia In pigs (swine plague) associated with the presence 

 of a hemameba in the red corpuscles and blood plasma, J. A. Giliutii ( \cw 

 Zeal. Dept. Agr. Ann. Rpt., 11 (I'MU), pp. 30 1 -30. ',).— The author reports upon 

 au outbreak in which 42 pigs, from 3 to 4 months old, out of a lot of 100 had 

 succumbed at the time of the investigation. 



A contribution to the clinical diagnosis and treatment of schlerostomiasis, 

 BocHBERG {Ztschr. Veterinurk., 21 (1909), No. 6, pp. 271-275; abs. in Vet. Rec, 

 22 {1910), No. 1124, P- 48^)-— An outbreak of disease due to Schlcrostomum 

 tetracanthiim is reported in which 38 foals were affected. After G had died 

 the remaining 32 were treated with atoxyl and all recovered. "The atoxyl 

 was employed in part subcutaneously and in part intravenously, in doses rising 

 from 0.2 to 0.5 gm. (3 to 7i grains), and in individual cases up to 1.5 gm. (23 

 grains). The formula for the injection was 1 part each of atoxyl and pure 

 sodium chlorid to 100 parts of distilled water." 



The distribution of Piroplasma canis in infected dogs, including those 

 treated with arsenic preparations, E, Goldschmid (Zisclu: I nun anil at nf. u. 

 Expt. Ther.. /, Grig., 5 {1910), .A"o. 6, pp. 6()3-6S8, pi. i).— This is a report of in- 

 vestigations of patho-anatomical changes in dogs infected with the Russian virus 

 of P. canis, some of which had been treated with arsenic preparations. 



A further note on the drug treatment of biliary fever or malignant jaun- 

 dice of the dog (canine piroplasmosis), W. Jowett {Agr. Jour. Cape Good 

 Hope, 36 {1910), No. J, pp. SJ/l-o'/O). — Since the account pi-eviously noted was 

 reported (E. S. R., 22, p. 582), the author has treated 25 cases with trypanblau, 

 all but- 2 being cured. The experiments show that the blood of dogs which 

 recover from the disease in virtue of the trypanblau treatment still remains in- 

 fective for susceptible canines, but that such recovered animals are immune 

 against further infection, at least for a period of 6 months after recovery. The 

 author finds that this dye is without curative effect on the disease of goats, 

 sheep, and cattle, known as heartwater. 



A study of the control of Haematopinus macrocephalus and H. piliferus, 

 H. Jakob {Miinchcn Tierarztl. Wcltnsclir., 53 {1909), -Yo.s-. 11, pp. 193-199; 12, 

 pp. 213-220; abs. in Vet. Rec, 22 (1910), No. lU/G, p. S38).— The author reports 

 experiments that were made with two species of lice, namely, //. macrocephalus 

 of the horse and //. piliferus of the dog, in order to determine the effect of water, 

 air, and certain drugs used antiparasiticallj'. 



A submergence in water of from 20 to 28 hours was found to be necessary to 

 kill them. When exi)osed to the sun's rays at a temperature exceeding 4'.]° C. 

 they were killed in two or three minutes. A watery solution of from 1 to 2 

 per cent of liquor cresoli saponatus in the form of i)aths over the whole of the 

 body was found to be sufficient to kill the parasites in 15 minutes. 



