254 VITALITY AND EFFICIENCY WITH RESTRICTED DIET. 



in the Nutrition Laboratory and by Professor Johnson in Spring- 

 field, unfortunately our temperature measurements were not made 

 for the purpose of determining the reaction of the temperature regu- 

 lating function to muscular work. Pea was captain of the cross- 

 country team, and on several occasions ran a strenuous race. On 

 November 28 he ran a race of 6f miles according to the pedometer 

 record. It was impracticable to measure his rectal body temperature 

 under these conditions, but the mouth temperatures are perhaps not 

 without some interest. At 9^30"" a. m. after breakfast, when he was 

 lying down, the mouth temperature was 98.6° F. After a run of 54 

 minutes of approximately 7 miles, and while the subject was lying on 

 the bed, the mouth temperature at 1148'" a. m. was 97.4° F. The 

 fact that this subject had been running a race in the open air, with 

 probably more or less mouth breathing, makes these records of rela- 

 tively little value. The difficulties in obtaining accurate records of the 

 mouth temperature, especially after long races, have been carefully 

 pointed out by Dr. Blake in his observations on Marathon runners.^ 

 It is more than probable, however, that there was no true increase in 

 temperature as a result of this activity, for this fall of 1.2° F. is not 

 unlike that recorded by Blake and his co-workers in the case of the 

 Marathon runners. 



CONCLUSIONS REGARDING EFFECT OF DIET ON BODY TEMPERATURE. 

 Practically all that can be said regarding these records of body tem- 

 perature is that the reduced diet did not, save in the case of Squad B, 

 produce any noticeable alteration from the ordinary temperature 

 control exhibited by normal individuals. The febrile temperature 

 of Spe has been a matter of very considerable perplexity. On De- 

 cember 9, at 6 a. m., in the respiration chamber in Boston, this subject 

 gave a rectal temperature of 97.6° F. On December 12 at 5^45"" 

 a. m., prior to the gaseous-metabolism experiment, he had a mouth 

 temperature of 99.6° F. On December 13 records of the mouth tem- 

 perature were taken very frequently. In the morning it was 100.5° F. ; 

 later in the afternoon the attending physician recorded it as 102° F.; 

 at 6^30"" p. m., 102.5° F.; at 7 a. m., December 14, 102.2° F.; at 6 

 p. m., December 14, 104.2° F.; and in the early morning of December 

 15, 102.8° F. Spe then left Springfield for his home. The body- 

 temperature record in the subsequent course of the illness is given 

 in figure 87 on page 363. The variations in the temperature curve of 

 typhoid patients are altogether too wide to allow any deductions as to 

 whether this case of suspected typhoid showed usual values or not. It 

 is clear, however, that no extraordinarily high or low temperature 

 measurements were found even in this case of infection, and that the 

 important temperature-regulating function of the body is capable of 



1 Blake and Larrabee, Boston Med. and Surg. Journ., 1903, 148, p. 195. 



