59^ Dr, Davy’s Account of some Experiments 
1 . Venous blood 102.5 Arterial blood 104 
2. 
3 - 
4 - 
5 - 
104 
104 
103.5 
104 
105 
105 
105 
105. 
The following results were obtained from three experi- 
ments on sheep, whose exact age I could not ascertain. The 
thermometer in the shade was 60. 
1. Venous blood 103.5 Arterial blood 104.5 
2. 102.5 104 
3. ^ 103 104. 
The experiments on oxen were only two in number. The 
temperature of the air was 64. 
1. Venous blood 100 Arterial blood 101.5 
2. 100 101. 
In both instances the oxen were knocked down before the 
vessels were opened ; and as respiration had ceased in conse- 
quence of the injury of the brain and spinal cord, no difference 
of colour, of course, was perceptible between the blood from 
the jugular vein and that from the carotid artery. 
These results, so different from what might have been ex- 
pected, from the observations of Messrs. Coleman and Cooper 
on the temperature of the two sides of the heart, led me to 
repeat their experiments. The experiments in which I place 
most confidence were made on lambs, about four months old, 
and to these I shall confine myself at present. In each in- 
stance the animal was killed by the division of the great ves- 
sels of the neck ; an opening was made immediately into the 
thorax, and a very delicate thermometer was introduced into 
the ventricles of the heart by means of a small incision. The 
