64 EXPERIMENTAL FARMS. 



in three hours after the tuberculin was injected it fell so rapidly afterwards to the 

 usual normal that it was evident that the high point reached was not due to the action of 

 the tuberculin. The sudden rise also of 2 degrees which took place in the case of the 

 Polled Angus calf No. 26 within three hours after injection was followed by a rapid fall 

 to the normal so shortly after that it was highly improbable that the rise was caused 

 by the tuberculin. As the mother (Cowslip) of one of the young calves not tested was 

 found to be diseased, the calf also was killed but no evidence of disease was found in it 

 — the mothers of the other two young calves proved to be healthy, and they of course 

 were not slaughtered. 



In this instance 10 of the animals destroyed were pure-bred and 3 grades — four 

 were bred at Indian Head and nine sent from Ontario. 



EXPERIMENTAL FARM, NAPPAN, N.S. 



During the month of August, I visited the branch experimental farm at Nappan, 

 N. S., with the object of testing the cattle there. As mentioned in Bulletin No. 20, p. 

 31, one case of tuberculosis had occurred there in the summer of 1893 when the sus- 

 pected animal was killed and on post-mortem examination found to be affected with this 

 disease. Two of the progeny of this cow -w ere tested shortly after with tuberculin, and 

 shown to be free from the disease, and as the remaining animals appeared to be healthy 

 no further steps were taken at that time in testing the herd. 



There were 39 animals in the herd on the Nappan Farm, 18 of which were grades, 

 and 21 pure bred. Most of them were in good condition, and apparently healthy. 

 The pure bred animals consisted of the following breeds : 



Cows. Heifers. Calves. Bulls. 



Durhams 5 2 1 



Ayrshires 3 1 1 



Holsteins 3 1 11 



Jerseys 2 



In this investigation I was assisted by Dr. Geo. Townsend, V. S., of New Glasgow, 

 N. S., Dr. Wm. Jakeman, V. S., of Halifax, and Dr. F. G. Hall, V. S., of Amherst, 

 N. S. The normal temperatures of the animals were taken on the evening of August 

 22nd, and morning of the 23rd The tuberculin was injected at 1 p.m. that day and 

 the temperature taken every three hours after for 18 hours with the results given in 

 the following table : — 



