^^4 Sir Everard Home on the injiuence of 
The fourth report. 
In a labour that lasted 40 hours ; the pelvis deformed. 
The heat of the uterus was not accurately ascer- 
tained before delivery. 
after delivery - - 115® 
When placenta expelled - - - - 118 
The placenta itself - - - 112 
The instant the child breathes, the pulsations in the chord 
begin to decrease in frequency till they become the same as 
at the wrist of the mother, and then cease. 
As the balls of some thermometers are so thin, that any 
pressure made upon them raises the mercury, and renders 
the instrument inaccurate, it is necessary to remark in this 
place, that the thermometer employed by Dr. Granville 
was not capable of having its mercury raised a single degree 
by the greatest pressure upon the ball that could be made 
without risk of breaking it. 
When the heart of a dog is in action, the heat in the left 
ventricle is 101, and is the same in the stomach, so that mus- 
cular action does not increase animal heat ; and the follow- 
ing circumstances, mentioned in Mr. Hunter’s paper on this 
subject, in his work on the Animal CEconomy, proves that 
its increase or diminution of heat is independent of the action 
of the arteries. A gentleman while in a state of insensibility 
from an apoplectic fit, and lying in bed covered up with 
blankets, had his whole body at one instant become extremely 
hot, and then suddenly extremely cold, his pulse all the time 
undergoing no change. 
The glow of heat brought into the cheek in the act of 
