28 J- Lindhard. 



While the temperature on the whole first rises and then falls, 

 there is for the temperature on the forehead a slight tendency to 

 rise in the st position. In the slightly falling mouth temperature 

 there is however no change to be observed owing to the change in 

 position. 



In his work cited above, Oliver records that the calibre of the 

 arteries decreases after meals in the active positions and the type of 

 contraction changes, the greatest calibre being found in the lying 

 position. With regard to the first observation, I am at variance 

 with Oliver, as I have found as a rule the greatest calibre after meals 

 in artery-gaugings in the s position; but on this point Oliver is 

 also at variance with himself, as he maintains as a principle that 

 the diameter of the artery follows "the temperature of the body". 

 And it was noted above, that the temperature, whether measured in 

 the rectum or in the mouth rises at meal-times. With regard to 

 Oliver's second assertion, that the calibre is greatest in recumbency 

 after the meal, I have now and then been able to confirm its cor- 

 rectness; my measurements are not many, however, so that I cannot 

 tell how often this is the case. But just as I have occasionally 

 found increased calibre of artery in r after a meal (and at the same 

 time apparently a changed static reaction ^ in the number of leuco- 

 cytes), I have also, as stated above, now and then found a higher 

 mouth temperature after a meal in the r than in the s position. 

 Whether these cases hold together, I do not know, as the measure- 

 ments, at any rate under the conditions given, could not be made 

 at the same time; but a certain probability seems to me to speak 

 in favour of this taking place. It will be shown later on, however, 

 that the mouth temperature may in certain cases follow the temper- 

 ature of the skin on the forehead, in falling a little on the latter 

 rising under conditions where a rise was to be expected. It is 

 therefore not impossible that the slight fall in the mouth tempera- 

 ture on transition to r position is due to the temperature of the 

 skin rising at the same time. Against this howeл'er we have a 

 series of measurements from ^''/la 07, where the mouth temperature 

 falls distinctly in the r position, while the temperature on the fore-' 

 head is but very little changed. Lastly, it ought to be observed, 

 that the air temperature is always a little lower in the r than in 

 the s position. This hardly influences the results, however, as the 

 mouth temperature will not be able, during such a short time as is 

 occupied by a measurement, to react to a difference of temperature 



' See Hasselbalch & Hkykrdahl: Det Kgl. danske Videnskabernes Selskabs For- 

 handlinger. 1907, No. Г). 



