( 95 ) 
ftantly receive the Impreflion of the Cold, and the Air 
contain’d in it be confiderably contraded, before the 
Thermometer gave any fign of fuch Alteration. But 
feeing the former part of the Experiment fucceeded fb 
exaftly regular, I think there can be no doubt of the truth 
of the whole Calculation, which yet 1 do not fee how 
better to be perform’d. I (hall add a Table of the diffe- 
rent Degrees of the Airs denfity at every lo Degrees, 
from 1 30 above the Freezing Point, to 50 Degrees be- 
low it. , 
This Experiment was made February the nth, 1708^ 
the Mercury in the Barometer at th^^fame time hand- 
ing at 30 Inches 
— 0.2^. . Degrees 
