PHYSICAL aNp LITERARY. 159 
ARTs VEL 
Of the Cold produced by evaporating Fluids, 
and of fome other Means of producing Cold ; 
by Dr WiLuiaMm CULLEN, Profeffor of 
Medicine in the Univerfity of Glafgow *. 
Young gentleman, one of my pupils, 
whom [had employed to examine the 
heat or cold that might be produced by the 
folution of certain fubftances in fpirit of 
wine, obferved to me, That, when a ther- 
mometer had been immerfed in fpirit of 
wine, tho’ the fpirit was exactly of the 
temperature of the furrounding air, or 
| _ fomewhat colder; yet, upon taking the 
| . thermometer out of the fpirit, and fufpend- 
ing it in the air, the mercury in the ther- 
- mometer, which was of Farenheit’s con- 
ftruGtion, always funk two or three de- 
grees. ‘This recalled to my mind fome 
experiments and obfervations of M. de 
' Mairan to the fame purpofe; which I had 
read fome time before. See Dzfertation 
: fur 
pr May 1. 1755. 
