EXPERIMENTS WITH TUBERCULIN ON NONTUBERCULOUS COWS. 
125 
TEMPERATURES. 
The tested animals were treated like the rest of the herd 
with the single exception, that in order to take the temperatures, 
they were tied up in the stalls for twenty-four hours on each 
occasion of testing, while the others were at liberty under an 
enclosed shed except when tied up for feeding and milking. 
The prolonged standing on hard boards, led on each occa¬ 
sion to congestion of the feet of the Holstein cow Mabel which 
weighed 1455 lbs, but as this invariably took place under similar 
circumstances, and apart from the injection of the tuberculin, the 
slight rise of temperature on each occasion of testing is abun¬ 
dantly accounted for from the condition of the feet alone. This 
conclusion is further confirmed by the fact that in excepting in 
cases in which she was turned out in the afternoon to relieve her 
tender feet, the temperature went on steadily increasing to the 
last, This was victoriously the case in her last tests of the series 
(November 28th, December, 7th, December 12th). On a pre¬ 
vious occasion Mabel had been tested in company with the 
entire herd, and stood the test satisfactorily. Even in the 
present series of tests, this cow (with one exception) never rose 
more than two degrees above her initial temperature taken when 
that particular test was started, and even she only rose nine- 
tenths of a degree above 102° F, which may be set down as the 
normal standard temperature of a cow in full milk, highly fed 
and kept indoors. Taking into account the variations in healthy 
cattle from one time of the day to another, this rise of less than 
one degree above the general standard implies nothing. 
The exceptional case was on November 9th and 10th, when 
Mabel’s temperature rose to 104°, and that of the Shorthorn 
grade to 104.3 0 . Taken by itself this test might have been mis¬ 
leading, but in connection with six other tests (in case of Mabel 
seven), made both before and after this, with the same dose ot 
tuberculin, and with no such resulting rise, it can safely be set 
down to accidental conditions. The real cause was not clearly 
made out but it is probable that it was chargeable to exposure 
in a cold draught. Both cows stood on separate ranges close 
