Investigations into the conditions governing the temperature of the body. 49 



previous period of transition, I think we may conclude that the 

 adaptation to the changed conditions was complete. 



The curves above (p. 48) give the results of measurements on a 

 individual who had difficulty in becoming accustomed to the "reversed" 

 days; though, on the 6th day after the transition had been accomp- 

 lished, he begins with high morning temperature (curve 1) after a 

 restless and partly sleepless night. The curve displays no rise at 

 breakfast; the temperature remains almost unchanged; a slight fall 

 in the afternoon is followed by a slight rise in the evening. On 

 the following day we find normal morning temperature after better 



gpm 



12. 



12 



^ 



^ 



B'-^^07 



В Ч 07 



В т 07. 



Fig. 9. 



sleep; there is a tendency to rise at breakfast and the temperature 

 further rises at noon, then continues fairly high with somewhat 

 irregular course. Next day the curve has nearly the ordinary form, 

 as appears from comparison with the control curve given as curve 

 4. The rise at 9 — 11 p.m. is due to a walk; the reaction after the 

 latter prevents the rise after the smaller meal at 12, which is also 

 not very well-marked in the control curve. In both, of the latter 

 curves there is a slight rise in the evening after an extra meal. 



On fig. 9 3 curves are given for another person, the first two 

 from reversed, the last from ordinary day and night. As a rule the 

 temperature in this individual rose rather abruptly in the morning, 

 which does not appear from the last curves, because one time of 

 measurement was passed by. The high afternoon temperature in 



XLIV, 1. 4 



