1819.] Dr. Burney on Parhelia, &c. 445 
theory of the phenomena. The air was serene at the time, and 
there were some dark longitudinal Cirrostrati interspersed in 
different parts of the sky. 
Nov. 3.—At eight,.a.m. a faint Parhelion appeared for a few 
minutes in the S.S.E. point on a Cirrus that was passing to a 
Cirrostratus cloud ; it was 22° 30’ distant from, and of the same 
height as, the sun ; and a small part ofa halo passed through it 
perpendicularly. Some Cirrus clouds, just above the sun, were 
beautifully tinged with most of the prismatic colours at the time. 
Much Cirrocumulus passed over from the southward in the 
course of the day ; and bright and dark hemispherical and pyra- 
midal Cumuli appeared in different quarters. A copious dew at 
night, and a sinking barometer. 
4, 5, and 6.—Rainy days and nights, with variable winds. 
13. Parhelia—At a quarter past nine, a.m. a Parhelion 
appeared in the 8.E. by E.2 E. point, 22° 35’ distant from the 
centre of the sun’s disc, whose altitude was 12° 25’3”. At 1i 
o’clock a Parhelion appeared in the S. by W. point, at the same 
distance as the first from the sun, which was at that time 
20° 2’ 3” high. Part of a solar halo passed through the first ; 
but no part of one could be traced at or near the second ; the 
vesicular vapour upon which it was formed being scarcely per- 
ceptible. ‘These Parhelia were of the same altitude as the real 
sun, and of the apparent size of his disc ; but they enlarged as 
their colours (red, yellow, sea-green, and pale blue) approximated 
to perfection. At half-past three, p.m. another Parhelion 
appeared in the S.W. by W. point, 23° distant from, and perpen- 
dicular to, the sun, which was 8° above the horizon: this one 
was situated on the top of part of a solar halo upon an attenuated 
Cirrostratus cloud ; but its colours were not so well defined as 
those which formed the Parhelia above-mentioned. There was 
a faint corona close round the sun during their appearance ; and 
as a proof of the vapourous state of the atmosphere, the index 
of the hygrometer of De Luc kept within the range of from 80° 
to 88° all day. A sunny day, with plumose Cirri, Cirrocumult, 
and Cirrostratt. 
Meteor.—At a quarter past seven in the evening, a low meteor 
moved slowly from the E. by N. to the N.E. by E. point, or 
through a space of about 22°, in a direction parallel to the 
horizon: its densest part was like the bluish colour which sur- 
rounds the wick of a lighted candle, and it left some large 
electric sparks behind. Light rain and wind in the night. 
'  14.—A stormy day; a strong gale, with heavy rain from the 
westward at night. 
15.—A continuation of the gale till noon, with sunshine, 
Cirrocumuli and Cirrostrati. Between six and seven, the moon 
rose under a semi-halo; and when she had ascended 23°, an 
entire coloured kalo surrounded her, and continued perfect till 
after midnight, having the appearance of a lofty, circular, dark- 
ish canopy, suspended in the air, and exhibiting at its extreme 
