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Meteorological Observations. 
Meteorological Observations made at Clapton in Hackney, 
from December 17, 1813, to January 19, 1814. 
Dec. 17-20, 1813.—The weather clouded for the most part, 
the Thermometer generally above 40° in the day, with damp hazy 
atmosphere and southwesterly winds. On the night of the 20th 
a frost set in, with Thermometer 24°. 
Dec. 21-25.—Damp atmosphere, a great deal of cloud, and 
some rain during this period. 
Dec. 26.—Clear day, with tufts of cirrus and cooler air, Wind 
northerly. 
Dec. 27.—A very great change took place. to-day; a thick 
white sératus or fog, of such density as to prevent carriages from 
finding their way, prevailed all day, and for a long period after- 
wards. 
Dec. 28.—Fog somewhat less, but very great. 
Dec. 29.—Fog denser in Londen, but rather less in the country. 
Dec. 30.—Fog so far cleared off in the country as to let the 
sun be seen through it, but very dense in London. 
Dec, 31.—Clearer in the middle of the day over-head, and 
cirrus observed in tufts; dense fog at night. Barometer 30.36, 
Therm. at night 21°. 
Jan. 1, 1814.—Fog cleared off again a little in the day-time; 
was exceedingly dense and dark in London. Therm. at night 
18°. Bar. 30.10. 
Jan. 2.—Fog less ; clouds seen aloft. . Barom., sinking, 29.85, 
Therm. 30°, 
Jan. 3*.—A thaw seemed coming with clouded sky, but the 
frost and fog returned at night. Barom. got to 29.61. 
Jan. 4.—Suow commenced to-day from NE. Barom. 29.35. 
Therm. 25, 
Jan. 5.— Snowing all day, and it lay very thick. Windy 
night from W. Barom, 29.15. 
Jan. 6+.—Windy. Snow lies deep. Barom. 29.20. 
Jan. 7.—Cold and clouded early ; then cirrus and cumulus. 
Barom, 29.68. Therm, at night 12°, 
* This remarkable fog, of so long continuance, appears by accounts to have 
commenced earlier in the southern and western parts of England than 
in the vorthern and eastern. It was very partial at times, and o!ten sud- 
denly abated and returned. To speak of its nature in meteorological lan- 
guage, I should say it was a highly clectritied stratus, and was accoimpanied 
the whole time by a gradually falling Barometer and an increasing trost. 
t The Barometer began rising to-day, and contioued to rise till the 11th; 
during all the interyal a very hard frost prevailed. On the 1th the Baro- 
meter began to sink again. : 
* Jan, 
