456 An Acccnnt of some Experiments on Animal Heat. 



has been distended with blood, Httle difference of temperature 

 between the two sides of the heart. ' 



To describe all the experiments that I have made to ascer- 

 tain the temperature of different parts of the animal body, would 

 extend this paper to an unusual length, and there is the less oc- 

 casion for a long description, as th.e comparative rtsnlts were 

 very similar. It will he suflFicient therefore hert to notice the 

 observations made on the human body, and en that of a lamb. 



That the tliermometer might be equally applied to all parts 

 of the surface, its bulb, in form nearly cylindrical, was fixed to a 

 small piece of cork, hollowed and lined with tine wool, and thus 

 half its superficies was applied in each ins'ance. The observa- 

 tions were made on the naked tjody at seven A. M, immediately 

 after quitting bed. The temperi'.ture of the air of the room was 

 70. The following were the results obtained : 



At the central part of the sole of the foot 00 



Between the malleolus intcrnus and the insertion of the 



tendo Achillis, vvliere the artery is felt 93 



Over the middle of the tibia 91*5 



On the middle of the calf 93 



Over the popliteal artery at the bend of the knee .... 95 

 Over the femoral artery in the middle of the thigh ... 94 



Over the middle of the rectus muscle -91 



Over the great vessels in the groin » 96*5 



About a quarter of an inch below the umbilicus 95 



Over the sixth rib on the left side where the heart is 



felt pulsating 94 



Over the same place in the right 93 



Under the axilla, the whole surface of the bulb being 



applied 98 



About an hour had now elapsed from the commencement of 

 the experiment. The thermometer again applied to the sole of 

 the foot rose no higher than 85, five degrees less than at first. 

 A disagreeable sensation of cold was experienced, and particu- 

 larly in those parts not supplied with large vessels, and out of 

 the course of the great arteries. The body remained unplea- 

 santly chilly till breakfast had been taken, and then a slight 

 degre^ of pyrexia was perceived; the heat of surface being 

 increased, the pulse (|uickened, and the mouth slightly parched. 

 After breakfast, the thermometer was applied to both hypochon- 

 driac regions, and the left was found one degree higher than the 

 right. 



To ascertain the temperature of different parts of the surface 

 beneath the integuments, the bulb of a thermometer was intro- 

 duced through small inci'ions about lialf an inch between the 

 skin and subjacent parts Ji a lamb just dead. The heat of th« 



rectum 



