12 J Lindhard. 



fluctuations corresponding to the meal-times. And on measuring 

 the temperature before and after meals, the latter y\i\\, as a rule, 

 be the higher; except, so far as the rectal temperature is concerned, 

 however, the meals taken immediately after strong bodily exertion, 

 on which more will be said below. 



In 30 measurements taken twice, the temperature being taken 

 immediately before and after meals under ordinary conditions, I 

 have found an average difference of 0375 4; О'ОЗ, /^ = 026 = 69 "lo 

 of average. The meal-time being a variable factor, an average will 

 have a very limited value, which is also shown in the large standard 

 deviation. The differences are for the rest evenly distributed, 17 

 minus and 13 plus, further 



^ > 12 = 40 o/o 

 |^>21=- 70 - 

 I" > 26 = 86-7 - 

 ^ > 29 = 96-7 - 

 ^l' > 30 - 100 - 



The fact that bodily exertion is in certain cases able to conceal 

 the actual change of temperature during the meal indicates, however, 

 that even under ordinary conditions this factor ought not to be 

 left quite out of account. Examination of the separate observations 

 shows, indeed, that the rise of temperature is greatest after a meal 

 following soon after sleep, least in the cases where one has been 

 active before the meal. Herein lies certainly the main reason for 

 the great deviation. 



When leading a sedentary life, the rise of temperature after 

 meals will, as a rule, appear distinctly in the curve of variation, 

 but the temperature will soon begin to fall again and after 1-2 . 

 hours return to its former level. 



The mouth temperature also rises at meal-time, and this rise 

 is, at any rate in the main, independent of the simultaneous rise in 

 the rectal temperature; this appears from its showing greater fluc- 

 tuations than the latter, and from the fact that it also rises or may 

 do so, in cases when the rectal temperature falls. 



