474 _ Meteorological Journal. [Dec, 1815. 
REMARKS, 
Tenth Month,—25. Lightning to the N. and W. last evening. 27, The wind changed 
to N. E. this morning: Cumulastratus, with inosculation, a, m.: west, p.m. 28 
wet,a. m.: fair, p. m.: rain again at night: windy. 29. A brisk gale atN.E, 
continued through the day and night: a bank of Cumulastratus was visible in the 
morning in the S., from which quarter Cumuli were propagated oorthwards, 
changing the state of the superior clouds as they advanced: some Cirri in long 
lines above the whole were not affected: a solar halo appeared from one to two, 
p- m., and the sky was turbid beneath the sun. 30, a, m. completely overcast : 
windy, drizzling at intervals. 31. a. m. Cirrostratus tending to Cirrocumulus, 
beneath large Cirri pointing N. B. and S. W.: fair. 
Eleventh Month.—1. Low Cumulastratus beneath Cirrostratus: a breeze at,N, E., 
changing at night toN. W., without affecting the state of the clonds, which were 
dense, p.m. 2. Breeze at N. W.: a.m. Barometer very steady : Cumulastratus : 
much redness in the twilight. 3. a.m. clear, with Cirrostratus; slight hoar 
frost: coloured sun-set. 4. a.m. clear, with a little Cérrosiratus: very white 
hoar frost, with ice: a fine day: after sun-set, a dull purple in the E., with a 
little orange in the W.: the moon conspicuous, the crescent indifferently defined, 
and pale. 5. Rain by seven, a.m.: after whichlow Cumulastratus. 6, a.m. A 
few drops, withthe windS.: thenfine. 1. Cloudy: rain: lunarcorona, 8, Some 
drops, a. m.: then-much Cirrostratus: sun-set, with streaks of brown and purple 
on a yellow ground: moon visible, but its light peculiarly dim: wind and rain 
in the night, 9, Wet morning: dripping day: lunar corona: wind. 10. Fair, 
with Cirrostratus. 11. A little rain at night : Cirrostraius. 12, A fair warm day: 
yarious clouds passed over with a moderate wind; at evening the moon showed a 
lucid corona; to which sueceeded, (the wind having risen and veered to S.) a 
continued exhibition of coloured halos varying in diameter, formed on low, rapidly 
passing, curling clouds, with an occasional corona, of pale green or yellow, 
between: a most tempestuous night followed, with rain. 13, Windy: a shower, 
p.m.: the moon gold-coloured, 14, Clear: wind moderate, 15. Cloudy, a, m.: 
windy: a sensible odour of electricity in the air, at one, p.m. 16. A snowy 
morning: fair, p.m. 17. a.m. White frost: little of yesterday’s suow remain- 
ing: the wind S. W.; a breeze; a little rain: p.m. a waggon from the north 
came thickly covered with snow : wind brisk at N. at night. 18. Hoar frost: the 
moon looks like a map, so great is the transparency of the higher atmosphere, 
19. Hoar frost and rime on the trees, bodies of thin mist, probably Cirrostratus, 
moved quickly over us this morning from the S, W. rendering the tree tops invi- 
sibleza fine day: Cirrus and Cirrostratus at night. . 20, a. m. Cumulastratus : 
max. temp, at nine. 21, a.m. Cirrus: Cirrostratus: min, temp, at nine, 
22, Fair, with hoar frost. 
RESULTS, 
Prevailing Winds Northerly, interrupted by a Southerly current, which greatly 
depressed the barometer, soon after the middle of the period, and was followed 
by a sharp frost, 
Barometer: Greatest height..........+-++.0+++«e.30°35 inches 5 
Sheds OS 20st. ists see ce ee ee cece ee «29°95 inches 5 
Mean of the period ............-...-29°183 inches, 
Thermometer: Greatest height .........0+-:eeeeeeceeenreeeDl® 
Treat: cdiniesa0.s tp ieticte stale ssldicleicihess.aadhise wae 
Mean of the period .....-.0:eeeeeeeeeese ee AL TS® 
Mean of the hygrometer, 76°5°, Rain, 1°97 inch, 
TotrenHAmM, Eleventh Month, 23, 1815. L. HOWARD, 
