ExtTRA METEOROLOGICAL OBSERVATIONS, Marcu 20—Aprit 14, 1845. 283 
ADDITIONAL METEOROLOGICAL NOTES. 
1849. 
“Mar. 20 16 (ay 
on 
| 
i 
| 
: 
| 
| 
| Mar. 28 12 25 
| 
i 
7h ge 
-22, 0 
Mar. 30 17 10. 
Mar.31 3 
. dl 18 50— 
ety: LO. 
OG) 
5a 
8 6 
pr. 13 16 25, 
MA 7 
far. 26 10—11%. 
Milky-like cirri radiating from N.; if cirri, they are of the very thinnest kind, the sky only 
appearing milky here and there. 17 4m, Cirri radiating from N by W.; sky milky. 175 20™. 
Altitude of crepuscular arch 30°; reddish vapours to E, 18%. Sky pinkish to ESE., blood- 
red to E., deep purple to ENE; cirri radiating from NNW. 195. Cirri radiating as before. 
20% 30m, Parhelia seen, ‘The western parhelion very bright. 
Several flashes of lightning seen; wind blowing strongly at 125 10™; at 12 15m, wind blow- 
ing 6-0 Ibs. ; heavy rain. 14%. Sky milky; the moon projects the shadow of the clouds in 
the air; traces of aurora, 175 4™, Crepuscular arch about 8° altitude. 175 45m, Begin- 
ning to colour on the E. horizon. 18 20™. « Lyre seen quite distinctly with the naked eye. 
A shooting-star to WNW., altitude about 45°, moving from S. to N. 
Crepuscular arch about 10° altitude. 35™. Sky colouring to E. 
The sky seems very milky near the sun ; this has generally been observed when the difference of 
the dry and wet bulb thermometers was considerable, as to-day ; the mixture of vapour with 
the air rendering it more transparent. At 115. Sky milky and hazy-like near horizon ; faint 
aurora. 
Crepuscular arch, 9° altitude. 
Patches of cumulo-stratus to N.; woolly and mottled cirri from W by N.; linear and curled cirri 
from W. ; cirri radiating from NW by W.; portion of a halo. 44. Fine mottled, linear, and 
cymoid cirri; cirro-strati radiating from NW by N. and SW by 8.; halo brighter than before. 
55, A long string of scud, loose cumuli, and cumulo-strati extends from Cheviot to N., 
moving from SSW. ; masses of cirro-strati; mottled and woolly cirri and cirrous haze. The 
cirro-strati are in rounded cake-like pieces one above another; sky altogether stormy-like. 
55 20m, The cirro-strati to E, have regular serrated ridges. 6%. Patches of a halo. 7». 
Clouds pinkish or slightly claret-coloured to W. 
19 15. Parhelia seen; they were at no time very bright ; the distance of each from the sun, from 
several measurements, was 223° ; they were sometimes elongated horizontally, and sometimes 
vertically. The parhelia were coloured red on the side nearest the sun, and greenish-yellow 
on the opposite side ; the clouds in which they were produced were dense cirro-strati and cir- 
rous haze. In the zenith woolly cirri, having a slightly cirro-cumulous disposition. 21° 15™. 
Top of a halo seen. 225, The cirro-stratus is composed of various kinds of cirri; patches of 
loose cumuli or cirro-stratous scud to N. 
Bright crepuscular arch, altitude 11°; an arch of reddish vapour 5° altitude. 18% 5™, « Lyre 
seen through cirri with the naked eye. Sky nearly covered with cirri, radiating from ESE. 
and WNW.., coloured orange, red, and yellow; deep-red vapours to E. 
Cirri dispersed irregularly over the sky, radiating to some extent from WNW. ; hazy on horizon. 
75. Flame-like cirri; atmosphere very hazy to E.; Cheviot invisible. 18% 5™, Shooting- 
star to E., altitude 30°, moving slowly towards E by S., magnitude 1 to 2. 
Finely-mottled cirri to W., altitude 20°, which shew colours exactly like diffraction spectra from 
irregularly-striated bodies ; deep purple vapours to W.; thick to E.; Cheviot invisible. 
Passing showers ; clouds falling in cirrous curtains as if bent by the wind ; there must be snow in 
the upper strata, as the rainbow is seen at the extremities only, and the sun is shining on the 
whole. 8». Sky of aslate-blue to E, 10" 15™. Sky very clear ; stars of the third magnitude 
seen within a degree of the horizon; a dark speck of cloud appears about 15° above NW., it 
rapidly increases, is very thin at first, gradually becomes denser, extending itself ; in 5™ it 
covers two-tenths of the sky, extending from NW. to SE. ; throughout it has been surrounded 
by sky; in about 10™ it becomes much thinner ; stars of the second magnitude being visible 
through it m many places, and is again rapidly disappearing but without any motion. Streaks 
of cirro-strati to NNW., quite stationary. Zodiacal light very distinct. 
Sky overcast with a thick hazy-like cloud; rain commenced. 18> 5™—15™. A long strip of 
light to E by N. vertically above the sun, like the sun reflected from rippled water ; the strip 
is slightly broken, like a series of not very regular repetitions of the sun’s image ; the cirri in 
which these images are formed radiate from NNW. 
Curi radiating from NNW. and SSE., but moving from N.; ill-defined portion of a solar halo. 
8». Cirro-strati blood-red from NW by W. to W., seen in fiery patches through the gray seud ; 
sky yellowish to N. 9. Clouds now radiating from N by E. 
