786 



EXPERIMENT STATION EECORD. 



Of the 5 varieties of leucocytes found iu the peripheral blood, 48.5 per cent 

 were lymphocytes, 4.6 per cent large mononuclears, 34.5 per cent polynuclears, 

 11.5 per cent eosinophiles, and 12 per cent mast cells. 



Contributions to the knowledge of the involution of the normal uterus of 

 the goat, G. Haenisch {Beitrdge zur Kenntnis dcr Involution ties noniialcn 

 Uterus der Ziege. Inaug. Diss., TJniv. Lcipsic, 1911, pp. 6-'i, i)ls. //). — A report of 

 studies of 32 individuals. A bibliography of 30 titles is appended. 



Notes on the attenuation of virus in the blood of cholera hogs to prepare 

 a vaccine, R. Graham (Amer. Vet. Rev., ^1 {1912), No. 3, pp. 330-33// ) .—Tests 

 were made for the purpose of determining the advisability of using hog-cholera 

 vaccines heated to 60° C. for immunizing against this disease. 



The results show that the inoculation of a virus attenuated at 60° for 1 

 hour does not produce a sufficient immunity to protect hogs against this disease. 

 It also usually presents the additional danger of actually producing hog 

 cholera, as was shown in the experiment. The temperature to which the 

 liquid blood must be heated to produce a reliable vaccine is variable, arid the 

 same dose of vaccine may kill, protect, or nouprotect, upon inoculating animals 

 of the same size under similar surroundings. Virus attenuated by heating to 

 60° when not carbolized will remain virulent for at least 24 days. 



Vaccination against hog cholera, F. S. Schoenleber (Kansas 8ta. Bui. 

 182, pp. J,39-.',6-'i).— Of 292,400 hogs vaccinated with the serum produced at the 

 Kansas College during 1911 reports were received in regard to 32.894 head, 

 which had been given the serum treatment alone, the serum-simultaneous 

 method, or the author's combination method, 1. e., serum alone followed in 10 

 days by the serum-simultaneous method, with results as follows : 



General summary of Kansas hog-cholera vaccinations. 



In addition to the above the bulletin discusses in a clear and concise way the 

 3 methods of vaccinating, the Kansas state law, immediate effects of vaccina- 

 tion, losses, care of hogs before and after vaccinating, instruments, the serum 

 and its production, controlling the disease, when and when not to vaccinate, 

 effect of vaccination on the offspring, stocking up after an outbreak, forms of 

 the disease, conditions favoring the disease, conditions or diseases which 

 resemble cholera, manner of infection, period of incubation, prevention of the 

 disease, disinfection, post mortems, and a few precautions and hints. 



Ascoli's thermoprecipitation reaction aS a diagnostic aid for swine ery- 

 sipelas, i\I. IwiCKi {Berlin. Tierarztl. Wchnschr., 28 {1912), No. 23, pp. 401, 



