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[ 6i+ ] 
o. So that in the Space of 15 Hours the former 
had fallen 17 Degrees, the latter but 2. For the 
other Particulars, relating to the Barometer, Wind, 
and Weather, I refer to the Table. 
As the Barometer had been for a good while paft 
fubject to fudden confiderable Variations, I fufpeded 
the fevere Cold on Wednefday Night arid Thurfday 
Morning would ijot continue long : Accordingly, 
upon my obferving the TherriiOmeter without at 4. 
in the Morning, I found it at ■§ nine Degrees below 
the freezing Point, that within at i five Degrees 
above freezing Point. But at 8 o’ the Clock the 
fame Morning, I found the Thermometer without 
at 3 j three Degrees and a half above freezing, and 
that within at 4 Degrees above 5 fo that in 4 Hours 
time, that without had rifen thirteen Degrees and 
a half, and that within had fallen 1 Degree. This 
naturally led me to examine what Signs there might 
be of a Thaw begun, but could find none, in the 
Snow (which was 5 Inches deep) or in the Poll, 
on the Windows, but within an Hour it was Vifible 
enough, and before 10 the Houfes dropr. I would 
obferve to you, that the Wind at 8 in the Morning 
had varied very little, if any, from what it was the 
Night before, viz;, from the Eaft, but foon after it 
bore to South-Eaft arid South. 
May not this fudden Change of the Temper of 
the Air be attributed it to a fubterranean Heat? And 
may not the fluffing of the Wind be caufed, in a 
great meafure, by the fame ? 
If you think thefe Obfervations may be accepta- 
ble to the Gentlemen of the Royal Society, who keep 
a 
