Olservations-on the late excessive cold Weather, 188 
My thermometer is graduated according to Fahrenheit’s seale, 
and L have no reason to doubt its accuracy. It is placed out 
of doors facing the NE, with a projecting edge of brick-work 
to defend it from the rays of the rising sun. 
My barometer is a wheel instrument, therefore 1 do not rely 
on it for extreme accuracy, but as affording sufficient informa~ 
tion of the vicissitudes in the pressure of .the atmosphere. In 
my observations with this instrument, the letters 7. f. s. denote 
that the mercury is either rising, falling, or stationary, at the 
time of noting the observation. 
I generally register my observations in a morning only, but 
on particular occasions they are repeated oftener, especially be- 
tween nine and ten at night. The journal is not kept, perhaps, 
with that accuracy and regularity which are necessary to meet 
the public eye, but merely for my own amusement, and as con- 
nected with observations ou the culture of certain plants which 
at present occupies my attention. 
February 1816. 
Tuesday 6th.—Eight o’clock A.M. ; 
Wind NE. brisk.—-Barometer 28-95 f. Thermometer 36°. 
Sky dull, with small rain and sleet. 
Nine o’clock P.M. The sleet this morning was soon suc- 
ceeded by snow, of which we had three or four showers during 
the day; but this evening it fell faster, and now continues on’ 
the ground. Barometer fallen to 28°80 s. 
Wednesday 7th.—Nine o’clock A.M. 
Wind NE. Barometer 28:80 s. Thermometer 30°. 
Much snow has fallen during the night; and still continues 
to fall. It lies on the ground about three or four inches deep, 
on a level. 
Ten o’clock P.M.—It cleared up soon after the morning ob- 
servation was registered; but we had several slight showers of 
snow during the day. 
The barometer began to rise this evening. The sky is now 
clear, and it is a very sharp frost, the thermometer 20°. 
Thursday Sth.—Half past eight o’clock A.M. 
Wind N:—Barometer 29:07 r. ‘Thermometer 26°. 
Alternate snow and sunshine. It has heen a severe frost in 
the night, and still continues. My well-water pump is frozen 
for the first time this year. This pump is situated in a warm 
Rumford kitchen, which is in use daily from eight o’clock in the 
morning till nine at night. I make this remark because it satis~ 
factorily proves to my mind, that the thermometer had been se- 
veral degrees below 20° during the night. 
' Ten o'clock P.M.—The atmosphere was dull this afternoon 5 
but clearing up ip the evening, a bright moon-light night sue- 
M4 ceeded, 
