[ 5 “ 1 
near Bath, which to me exceeds all reafonable belief, 
viz. 30 degrees below o in Farenheit’s fcale, and this 
at 10 o’clock p. m. ? 
The morning of December 30. here (at Tooting), 
a little before day, my thermometer was at 1 8, i. c. 
14, degrees below o; but at night, about 8 o’clock* 
no more than 8 degrees : But Feb. 7. at near 7 
o’clock a. m. it flood at 1 4, i. e. 1 8 degrees below 
o ; which was the greatefl degree of cold I have ob- 
ferved in this or any other year. — I fhould not have 
mentioned this account from Bath, but that the gen- 
tleman, who gives it, feems to have a good inflru- 
ment, and mentions his having been converfant with 
fuch matters many years. If there be no miflake, 
it is an unaccountable phenomenon to me. In all 
my obfervations, I have found the greatefl degree of 
cold to be about an hour before fun-rifing, in time of 
frofi ; which is what one would reafonably expedl, if 
the Jroji holds ail night. I can guefs at the caufe of 
an uncommon local warmth > but not fo of an un- 
ufual degree of cold. 
I have had fome thoughts of laying a few thermo- 
metrical obfervations, I have made this feafon, before 
the Royal Society , but know not whether they will 
be acceptable, from. 
S I R, 
Your very affedlionate humble fervant* 
Tooting, Feb. 13, 
5 7 54 * 
LX VI. A 
