EXPERIMENT STATION BULLETINS. 



56i 



The spring temperatures are evidently lower than those taken in Sep- 

 tember. This may, of course, be due to other influences than atmospheric 

 temperature, such as inactivity during the winter months, and the absence 

 of flies during the winter months and March. The cattle cannot be said 

 to have been inactive during March for they had enjoyed their freedom in 

 a large lot, and appeared to exercise about as much, if not more than dur- 

 ing the hot days of September. The flies may be instrumental in raising 

 the temperature, yet it does not seem that they would make animal heat 

 uniformly higher while the cows were stabled. Everything seems to indi- 

 cate that this uniform reduction of temperature is to be found under the 

 direct influence of atmospheric temperature. If this is true, changes in at- 

 mospheric temperature should be watched with great care. Whether 

 the atmospheric temperature acts directly upon the animal or indirectly 

 by the stimulation of some function, it would make little difference so far 

 as the results are concerned. Instances have been cited me by Dr. 

 Dunphey, State Veterinarian, where he has been entirely misled by the 

 sudden change in atmospheric temperature. 



DO LOWER OR HIGHER NORMAL TEMPERATURES OCCUR ON 

 DAY THAN ON THE FIRST DAY OF THE TEST? 



THE SECOND 



We shall select the normal maximal temperatures for two successive 

 days just as in a test to determine the above question. The normal 

 maximal temperatures are used in summing up results for judgment, con 

 sequently are peculiarly fitting for answering this question. 



-hMeans higher maximal temperature on second day. 



— Means lower maximal temperature on second day. 



oMeans the maximal temperatures are the same. 



No. of animal } * J » ' » » « » J 



Bo. of animal.. j 80 76 85 72 7_5 105 



No. of animal _ { |» * « " »« «» ® » 



No. of animal j 86 N 18 91 101 90 89 



No. of animal { » 128 . 12 _! •* « 



No. of animal j « J »* ^ 3 *» 



No. of animal .{ ™ ™ *» 1° ™ "1 1* 



No. of animal ..j _6 29 57 56 63 20 I? _2 



No. of animal j " » g 2 | 4 i 5 J » 



No. of animal .{ 88 89 90 91 92 83 9* 



No. of animal j " ™ 10 i ™ 10 j 



No. of animal ) «» «° 111 



Total number of comparisons of normal maximal temperatures, 123. 

 Total number of maximal temperatures where the second day exceeds 

 that of the first, 44. 



