416 Meteorological Journal. [May, 1817. 
REMARKS, 
Third Month.—10, Fine, with Cumulostratus. 11. A mist, probably from the 
Thames, there having been much Cirrostratus at sun-rise in the SE: cloudy, p.m. 
witha few drops. 12. a.m. Cirrostratus in flocks: at evening a slight shower, 
with wind. 13, Fair: overcast with Cumulostratus, 14. This morning at eight 
the wind sprang np at NK, a gentle breeze, which, being propagated upwards, 
carried a veil of Cirrostratus off to SW: in the evening the sun’s disk was curiously 
disfigured by the intervention of Cirrostrati, with vapour : after being divided, 
and afterwards crossed as by belts of this cloud, the lower portion came out much 
enlarged horizontally, while the part yet obscured became somewhat conical up- 
wards. 15, a.m, Cirrostratus : misty to SW, after which light breezes and general 
cloudiness. 16. Hoar frost: fair: wind SEa.m., NE p.m. 17, A dripping mist, 
after hoar frost : then Cumulus, and the wind S. 18, Hoar frost, misty morning, 
SE: clear day: p.m. the wind SW, a smart breeze: clouds after dark, 
19. a.m. Wind SW: Cumulus, beneath Cirrocumulus and Cirrostratus : p.m. windy 
at NW : Cumulostrati and Nimbi, with a little hail, 20. A gale at NNW, tending 
continually !to go to N: a very scanty snow at intervals. 21. Very fine: Cumuli 
prevailed, which evaporated at sun-set: the reads quite dusty : wind tending to E, 
asmart breeze: nightcalm., 22, Hoar frost: hygr. noted at eight a.m, ; very light 
breeze. 23. Hoar frost : fine day ; evening obscured by Cirrostratus, which descended 
from above. 24, Some drizzling rain this morning. 25, Hoar frost: rain: a 
hail shower: p,m. the wind NE. 26, a.m. Overcast with Cirrostratus: small 
rain, p.m. 27. Very fine day: winda.m. NNE, with Cumulus and Cirrostratus. 
28. Wind S, a.m. with Cirrostratus: drizzling drain, 29. Temp. 50° at nine, 
a.m.: windy at SW. 30. Very fine morning, withdew: Cumulus beneath Cirro- 
cumulus and Cirrostratus: a few drops of rain: a small yellow lunar halo: much 
wind in thenight. 31. Windy: Cumulus beneath large Cirri: a lunar halo, white 
and of large diameter. 
Fourth Month.—1, 2. Light driving mists, followed by fine days. 3, Hoar 
frost: rose-coloured Cirri at sun-set. 5, Cloudy: a few drops: misty night. 
6. Hoar trost: Cumulus, with Cirrocumulus: windy, 7. Windy: SW by night, 
with mist. 
RESULTS. 
Winds for the most part light and variable, but on the whole Northerly. 
Barometer: Greatest height.................+-. 30°51 inches, 
| PEC DRGe Saber oda yoo qo socsecccees 292 
Mean of the period ........ Silos ekOLOe 
; Thermometer: Greatest height.......2.+s0-+.+.+++ 60° 
EASE Sis 1m chic ofeleie’s oe abceiseme st aul 
Mean of the period........ See tthe a 
Mean of aheviverometers i. cas si-latise™ eacielienetostar 64° 
Fea siehepn/<loi Sajal lesa fe siajdietiainye ioe Ose DUANICIE 
The change from the turbid Atlantic air, which had for many months been flow- 
ing over us, to a dry transparent medium, was, from the commencement of this 
period, strikingly ebvious to the sense, The sun assumed a splendour, and the 
moon a brilliancy, to which the eye had been long unaccustomed, and distant ob- 
jects seemed as it were restared to the landscape. The mean of the barometer is 
the highest that has occurred to me since the spring of 1813: the ¢en dry days about 
the commencement of the period are the first that had happened in strict succes- 
sion for twelve months; and there has not fallen so little rain in any lunar period 
that I have registered since the beginning of 1810. The evaporation has doubtless 
been excessive, and I regret that J have kept no account of it: the state of the 
hygrometer does not fully indicate this, on account of the misty mornings. 
TorTeNnAM, Fourth Month, 22, 1817. L. HOWARD. 
