DISCUSSION OF RESULTS. 



69 



the cavity was heated by means of a hot-water bottle at 42 C. The subject 

 sat in a chair throughout the experiment. From 2 h 55 m p. m. until 3 h 23 

 p.m., he endeavored by muscular activity to stimulate a rise in temperature; 

 he moved his legs and arms and exercised with a stool, lifting it, holding it at 

 arm's length, and raising and lowering it above the head. He also placed ;i 

 book rest on his toes, and moved it up and down. The exercise was sufficient 

 to cause perspiration and fatigue. After the exercise, he was very quiet, 

 closed his eyes, and tried to go to sleep. His elbows rested on the arms of the 

 chair, and his head on his hands. At 3 h 41 m p. m., as the mouth thermometer 

 was in position, some directions were written on a piece of paper. At 3 h 49 m 

 p. m., 400 cubic centimeters of cold water at a temperature of 4.8 C. were taken. 

 During the muscular work, the mouth thermometer was used, and held 

 continuously in place until it was removed when the cold water was taken. 

 It was then immediately replaced and allowed to come to the maximum 

 temperature. 



376 C 



374 



37 2 



37.0 



36 8 



36A 



36.2 



360 L 



I.40RM. 2.00 



2.20 



240 



3.00 



3.20 



3.4-0 4.00 



4.20 4.40 



Fig 36 Temperature curves for experiment of March 3, 1911, with F. G. B. 2.55 p. m. to 3.23 p. m , 

 muscular exercises; 3.49 p. m drinking cold water. 



Special care was exercised by the subject to keep the mouth closed and to 

 breathe only through the nose, so as to keep the mouth temperature as nearly 

 constant as possible. Care was also taken not to disturb the position of the 

 axillary thermometer. The curves for this experiment show remarkably 

 well the uniformity between the deep and the shallow rectal temperatures, 

 the temperature in the left axilla, and that in the mouth. The fluctuations 

 during the muscular exercise, the succeeding quiet condition, and the taking 

 of the cold water were almost exactly equal in all the curves and were clearly 

 defined. As would be expected, the muscular exercise produced a rise in 

 temperature, while the subsequent quiet condition and the taking of cold 

 water evidently caused a lowering of the temperature. 



The curves showing the body-temperature measurements for the different 

 localities may be found in fig. 36. 



