282 Extra Meteorological Observations, January 19 — March 20, 1845. 



ADDITIONAL METEOROLOGICAL NOTES. 

 1845. 



d. h. m. 



Jan. 19 19 19. A meteor considerably brighter than Venus bui-st at azimuth, N. 38° W., altitude 10° ; its course 

 was towards SW., being inclined to the horizon at an angle of about 45°; only a few degrees 

 of its course were seen. 



Jan. 19 22 10. Cirri rising in tufts from NNW. and radiating from that point, with the curls of the tufts, on 

 all sides, turned towards the magnetic meridian ; very dense on the horizon, like a mass of 

 auroral light, and in single tufts higher. 



Jan. 20 11 10. Large corona when the moon is covered by thin, watery cloud, and small bluish corona on the 

 apparently pure sky. Auroral light to N. ? 



Jan. 20 13 10. When the watery cirro-cumulo-stratus is over the moon it produces a beautiful corona of a very 

 fine light-green colour. 



Jan. 20 14 5. Faint lunar corona. The sky seems very clear around the moon, yet the very faint light-green 

 can be detected to a radius of about 4° ; inner circle of brownish light, about 1 0' broad. 

 14"^ 1 0™. The cirro-cumulo-stratus exhibited the phenomenon previously described (see volume 

 for 1844, p. 324, Sept. 26<i.) It moves rapidly, and seems always about to leave the moon, 

 but does not ; in fact, the cloud seems to grow at the prime vertical ; all to the north of it is 

 sky, and all to the south is cloud. 15^ 5™. Faint corona as before. Cirro-cumulo-stratus 

 now on the east and west horizon. 



Feb. 5 17 40. Shooting-star to WNW., altitude 40°, moving very rapidly towards NNW. 



Feb. 5 20 5. Sky coloured on S. to E. horizon. A beam of reddish light 4° or 5° broad, extends from ESE. 

 to an altitude of about 45°, inclined to E. horizon at an angle of nearly 75° : another, but 

 narrower beam, having the same origin, is inclined 20° to the E. horizon. 20'' 12'°. A bright 

 beam, about the same dimensions as the first noted above, in fact like its opposite extremity, 

 springs from about NW by W. ; also a lower band, which forms the greater part of an arch, 

 its apex having an altitude of 15° above the NNE. ; all the bands are rather rose-coloured. 

 20h ] 5m — 20™. There are now six bands springing from about NW. (or NW by W. 1) point 

 of horizon, like broad streamers, with equal or rather less spaces of sky between : all the 

 bands are rose-coloured, and rise from about 4° above horizon ; sky dark blue. The bands 

 nearest the vertical (inclined about 75° to the horizon) rise perhaps 20° ; the lowest bands 

 extend like arches. 20'' 30'^. The whole now form a band of rosy light on N. horizon, 

 brightest about NW. ( ] ), like an auroral bank. The sun rose shortly after this about ESE. 



Feb. 8 7 Sky rather milky ; milky aurora ? The new moon is shining ; some of the milky spots are un- 



doubtedly cirri, lighted by the moon. The cirro-cumuli now radiate from W. 



Feb. 14 7 Beautifully-coloured lunar corona, nearly 8° diameter. The colours are very deep and distinct, 



much more so than usual. The cloud in wliich the corona occurs, the watery cirro-cumulus, 

 grows about the zenith ; at ll'' a very faint small corona, although the sky seems perfectly 

 clear. 



Feb. 21 12 0. The dry and wet bulb thermometers shewed the same temperature (28°*0) ; at 12** 40™ the wet 

 bulb read 31°-0 when the dry bulb thermometer read 27°* ; at 0'" the water in the cistern 

 was not frozen ; at 40™ it was beginning to freeze ; the increase of temperature was therefore 

 probably due to the emission of latent heat during freezing (this has been frequently observed.) 



Feb. 27 3 Cirri lying NW and SE. The cirro-stratous scud and scud reaches from Cheviot to NW. in an 



unbroken mass, with sky on each side ; Cheviot covered with snow. The upper current of 

 cirrus appears to move rather quicker than the cirro-stratous scud. 



Feb. 28 11 Skj milky (see Notes to Extra Magnetical Observations, Tp. 122). 17™ — 25™. Three meteors 



seen, one moving nearly past zenith, the others moving NE. and NW., respectively, fi"om 

 about 60° altitude. 40™. Another meteor from 50° altitude above N., moving N by E. 



Mar. 10 7 Very wild-like black masses of scud with a light homogeneous background, perhaps scud falling j 



in showers : the wind commenced suddenly at 7*^ lO"" blowing 2-5 lb. ; at 20™, rain^. The 

 wind veered from NW by N. to N by E. at 7*^ 10™. 



Mar. 14 8 58. A fine meteor brighter than Venus to NNE., moving downward very slowly towards NNW., 

 through about 30°, no sparks. 



Mar. 20 11 3. Cirri radiating in belts from N. to S. ; hazy near horizon; indistinct lunar corona. Cirro-j 

 cumuli growing in a few minutes ; none seen at lO** 58™. 



11 



