59-i -Dr. Davy’s Account of some Experiments 
flow out on the introduction of the cork, which was always 
similarly placed. To retard the process of cooling, the 
bottle was closely surrounded by a thick layer of what is 
commonly called cotton-wool. Its capacity was equal to five 
ounce measures of water, or 2400 grains. It was first filled 
with cold water, which, when its temperature had been ascer- 
tained, was thrown into the receiver before used; it was next 
filled with hot water of temperature about 110, so that the 
heat of the glass might be nearly the same as that of the 
blood ; and lastly, when the vein or artery had been opened, 
the bottle was immediately emptied and filled with blood, the 
temperature of which was ascertained by the thermometer in 
less than a quarter of a minute. The mixture now was in- 
stantly made, and by the same thermometer the highest tem- 
perature after mixture was discovered. 
The four following trials were made on the blood of two 
lambs, both about live months old. The temperature of the 
air was 60. 
Cold water 57.5. Venous blood 100. Mixture 80; after one 
minute 78.5. 
Water 58. Arterial blood 103. Mixture 80; after one 
minute 79. 
Water 58. Venous blood 101.5. Mixture 79 ; after one 
minute 78.25. 
Water 58. Arterial blood 106.5. Mixture 81; after one 
minute 80. 
The rate of cooling was not noticed after the first minute 
had elapsed, as the blood then generally began to coagulate. 
The specific gravity was only ascertained in the two last trials; 
that of the venous blood was found to be 1050, and that of the 
