246 Meteorological Journal. [Marcn, 
REMARKS. 
_ First Month.—21. A dripping day. 22. Nimé grouped with other 
clouds: fine at mid-day. 23. Overcast. 24. Drizzling: rain in the 
night. 25. Overcast. 26. The same: a fog on the Thames appeared 
from hence to be a dense bank of cloud in the horizon : a little rain by 
night. 27. Fresh breeze: cloudy: p.m. a shower, with hail: night 
frosty. 28. Fresh breeze: drizzling rain: snow: fair, p.m. 29. Hoar 
frost: cloudy: fair. 30. Very white frost: misty horizon: sunshine 
after. 31. As yesterday, a.m.: at noon, hygr. 50°, the dust flies: 
wind S.W. p. m. with the usual sound for rain. 
Second Month.—1l. Hoar frost: fair. 2. Ice now about two inches 
thick: after hoar frost, a misty thaw: wet and windy evening. 3. Fair? 
moisture on the outside only of the windows. 4. Strong breeze at S.: 
misty: rain, followed by Cumulus, with Cirrostratus. 5. Very misty : 
the trees dripping. 6. Small and heavier rain by intervals: sleet at 
evening. 7: A gale from N, E., which came on last night, has brought 
a deep snow: snowy at intervals through the day. &. A smart breeze, 
with clear sunshine: the roads sloppy at mid-day : some distant clouds 
in the horizon at sun-set. 9. A continued sun-shine produced not the 
least effect on the ice to-day: hygr. at three p.m. 47°: there was a 
mistiness perceptible, to a certain height, round the horizon: the wind 
a gentle breeze. 10. For remarks on this night, see the sequel. 
11. Hygr. as yesterday nearly: sleet, snow, and rudiments of hail, in 
minute quantity. 15. After three days of clear sky (a little Cérrostratus 
excepted), an extremely misty air: different clouds followed, and a 
few drops by inosculation. 16. a.m. Cirrostratus im flocks: wind 
changed to S.W., then to N.W., and blew strong at night: hygr.-re- 
eeded to 46°. 17. Frost on the grounds from evaporation merely: the 
air by two thermometers not below 38°: the snow mostly gone ; but a- 
very thick ice remains. on the water: Cumuli rose this morning, and 
passed to large spreading Cumulostrati. 18, Obscurity to the N. E: 
snow, p.m. which melted in the night. 
RESULTS. 
Winds Northerly and Easterly. 
Barometer: Greatest height. ..........-...2+seees 30°38 inches $ 
MCAS Pe sae aide ed oh, ae mld & Walp Phat fee 28°90 inches ; 
Mean of the period ,......s200ve.s- 29°696 inches. 
Thermometer: Greatest height .......see- es eeereeereeeeees 48° 
CA eid eeiees. § wove eve dveca ties cece see —5° 
Mean of the period .........+.---+- Per ee 32? 
Mean of the hygrometer at nine, a.m, 80°. Rain and melted snow, 2°21 inches. 
A night on which Fahrenheit’s thermometer remains for some hours 
below Zero, is, in this climate, a rare occurrence : probably not above 
five of them fall within a century; the last appearing to have been 
19 years ago. It is observable that this extreme low temperature is 
not, as might be expected, peculiar to long continued frosts, but 
happens rather at an interval of one winter after sucha season. Such 
was the frost of 1794-5, which lasted 44 days, one whole day’s re- 
mission excepted, immediately before which the thermometer had 
descended to — 2; but in 1796-7, I find a temperature recorded of 
— 6, 5, with circumstances that indicate its having continued below 
Zero for some hours, Again, the character of the winter before last 
will be fresh i@ remembrance: the minimum of that season appears to 
have been not lower than 5°; and we have now a depression reaching 
ee a 
