156 



TUBERCULOSIS 



lion of the records-^ shows the averag'e daily v^ariatioii of 20 ani- 

 mals in which the temperature was taken for 24 hours to be 

 2.31° F. The maximum individual variation in a single day 

 was 4. 3° F. , the minimum 0.5° F. In 25 other animals where the 

 temperature was taken for 16 hours, the average variation was 

 1.79° F. In these the maximum variation was 3.2° F., the 

 minimum 0.6° F. Ten healthy animals (did not react to 

 tuberculin) in the same herd gave an average variation of 

 2.08° F. In these the maximum daily variation was 4.1° F., 

 the minimum 1° F. The lowest temperature was usually, but 

 not invariably, in the morning and the highest in the after- 

 noon or evening. I have appended the records of the temper- 

 ature of two of these animals. 



THE INITIAL TEMPERATURE OF TWO COWS, WITH RATE OF PULSE 

 AND NUMBER OF RESPIRATIONS PER MINUTE. 



*Bulletin No. 7, Bureau of Animal Industrj', U. S. Department of 

 Agriculture, Washington, D. C. The tests were made by Drs. F. L. 

 Kilborne and E. C. Schroeder, under the direction of Dr. Theobald Smith. 



