7" ANIMAL HEAT 



Tissues. 

 Brain - - - - - - 40 C 



Liver. - - 40-6-40*9 



Subcutaneous tissue 2-1 lower than, 

 that of subjacent muscles (man). 

 Anterior chamber of eye - - 31-9) / uu--n 

 Vitreous humour - - 3 6 -i}( rabblt )- 



Cavities. (Man.) 



Axilla - 3 6-3-37-5 C. (97'3-99-5 F-)- 



Rectum - 36-37-8 



Mouth - - 37-25 



Vagina - - 37-5-38 



Uterus - - 37-7-38-3 



External auditory meal us - 37'3-37'8 



Bladder (temperature of the 



escaping urine) - - 36-0-37-5 



Respiratory Passages. (Horse.) 



Air fMiddle of nasal cavity - - 23-4 C. 



temperature, j ,, trachea - - 32-4 in inspiration. 



4-5 C. I ,t . - 34'4 in expiration. 



Natural Surfaces* 



Cheek (boy, immediately after running) - 36-25 



f Anterior surface of forearm - 33'5-34'4 



(Man) Posterior ,, ,, - 34-0 



Room J Skin over biceps - 35-0 



temperature ,'\ ,, ,, head of tibia - - 31-9 



17-5 ,, immediately below xiphoid cartilage - 34-7 



^ ,, over sternum - - 33^2 



On hair (boy) - - 30-0 



Under hair over sagittal suture (boy) - 33'7-34'O 



Shaved skin of neck (rabbit) - 36-5 



On hair ,, ,, - 31-5 



,, between eyes ,, - - - 30-7 



Artificial Surfaces. 

 (Surface of trousers over thigh - 23-7-28-7 



temperature, coat over arm 



j_._o ,, waistcoat ----- 26-0 



Normal Variations in the Temperature. The internal tempera- 

 ture, as has been already said, is not strictly constant. It varies 

 with the time of day; with the taking of food; with age; to some 

 extent with violent changes in the external temperature, such as 

 those produced by hot or cold baths; and possibly with sex. On 

 the average the range of variation in the temperature of the rectum 

 or urine of a healthy man is from 36-0 C. (96-8 F.) to 37*8 C. 

 (100-0 F.). 



In the monkey a very distinct and constant diurnal variation has 

 been observed, and the range is much wider than in man (as much 

 as 5*4 F.), the maximum falling between 6 and 8 p.m. and the 

 minimum between 2 and 4 a.m. (Simpson). 



