REMAKKS ON THE WEATHER. 1842. 133 



DECEMBER. 



d h d h 

 16 20 — 17 5. 20^. A great mass of scud covered eighth-tenths of the sky at IQ'' SO"*, when there was a 



pretty heavy shower ; it moved off so rapidly that there was only one-tenth of clouds at 20** 0™ ; 



a complete and distinct lunar rainbow seen at IQ** 50™ : cumuli and nimbi to S. and SE. 23. 



Scud or loose cumulo-strati. 2^. Cirrous scud, chiefly to W. 5^. Loose cumuli. 



18 20 — 19 5. 20''. Cirrous clouds and haze. 23''. Scud: fine mottled, pure, and linear cirri above, point- 



ing N. 2^. Loose cumuli : fine cumuli on the Cheviots, but the sky covered chiefly with fine 

 cirri, radiating fron NNW. and from S. by W., principally mottled, but very thick to W. and NW, : 

 linear to E. : hazy to W. : sky to E. 5^. Sky covered with cirrous clouds. 



19 20 — 20 5. 20''. four-tenths of scud, the rest linear cirri, which covers almost all the sky : corona round the 



moon, radius three diameters. 23''. Scud : varieties of cirri above. 2''. Cirrous scud : linear and 

 pure cirri of the finest kind, like silken hairs, pointing from WSW. to ENE. 5''. Thick scud : 

 cirrous clouds above. 



20 20 — 20 23. 20''. Fine cirri and cirrous cirro-cumuli, moving slowly. 21''. Fine cirrous clouds, mottled and 



in strata : cirro-strati. 22''. Fine cirro-cumuli : linear, mottled, and woolly cirri, the latter in 

 little bundles lying in strata : woolly cirro-cumuli ; some of the cirri extremely fine ; much of the 

 upper cirri appears to radiate from NW. 23''. Cirrous clouds : cirro-cumuli of various sizes : finest 

 linear cirri highest, pointing from WNW. ; the cirrous clouds are very thick in some places, and 

 to the E. become Uke cirro-strati ; the lowest cirro-cumuli are rather large and woolly : about 

 23'' 20™ a few cymoid cin'i were seen, and a few most beautiful mottled cirri. 



21 — 21 23. 0''. Large woolly cirro-cumuli moving slowly from WNW. : linear cirri lower, seem as if drifted 



from WNW. ; thick towards horizon, cederaceous to SE. 1''. The clouds present altogether a 

 troubled appearance : the cirrous clouds have become quite thick, and like a semifluid : radiating 

 from SE. and NW., lying in dark and light strips : masses of scud or loose cumuli creeping along 

 S. horizon from about W. 2''. Cirrous clouds thick and spread unevenly over the sky : scud to S. 

 3''. Some smoky scud very low from WSW. ; scud or thick cirrous clouds above it from WNW., 

 the cirrous clouds not so thick as at 2'' : some patches of sky : observed a patch of loose scud moving 

 up from SW., which seemed to develop itself as if under the influence of two currents ; when about 

 30° high, it showed the prismatic colours, something like diff'raction spectra from irregularly striated 

 bodies ; the clouds have a gray tinge ; other cirrous clouds above all. 4''. The sky has a strange 

 appearance : scud very low, very far below the highest cirri, moving in strings like smoke quickly 

 trom SW. : higher scud slower from W. : linear cirri in E., and cirro-cumuli in zenith, &c. ; lowest 

 cirro-cumuli gray, and moving slowly from about W., lying in bands from N. to S. ; highest very 

 fine, their motion not detected. 5''. Scud principally : cirrous clouds seen above : sky in zenith. 

 6''. Dark, but masses of scud can still be seen moving up from SW. 7*'. Quite dark. 8''. North 

 part of the sky dark ; the south part has dark clouds near horizon, but lightens up to zenith, pro- 

 bably cirrous haze : stars occasionally visible. 9''. Dark. lO**. Scud, radiating from SE. : appa- 

 rently cirrous clouds above. 11''. Clear in zenith: heavy clouds to E. 12''. Clear streak in S. 

 horizon: patches of sky to W. and in zenith. 13''. Light clouds in zenith. 14'' — 15^. Dense 

 clouds to SE. and NW. 1 6''. Light clouds on N. and E. horizon ; the rest of the sky covered 

 with dark lowering scud. 17''. Dark clouds, except on N. horizon. 18'' — 19''. Cirrous clouds 

 on horizon. 20''. Sky covered with heavy clouds, especially on horizon. 21''. Scud : heavy clouds 

 on SE. horizon. 22''. Scud : cirrous clouds. 23''. Scud very low and moving quickly from SW. 



I patches of sky : cirrous clouds seen above. 



|22 — 22 10. 0''. Scud moving rapidly. 1''. Scud: cirrous clouds. 2''. Scud: loose cumuli on E. horizon. 

 3''. Heavy rain : clear to N. 4''. Sky clear, except where cirrous cumuli skirt the horizon on all 

 points but NE. 5''. Scud : light rain. 6'' — 7''. Scud, .Sic. : dark. 8''. Clear in zenith. 9''. Scud. 

 10''. Liffht rain. 



22 20 — 23 5. 20''. In a few minutes rain, and the sky became nearly overcast : sky on SE. horizon : cirro- 



strati seen there. 23''. Scud, in strata to SE. : a few linear cirri : rain freezing on the palings, &c. 

 2''. A mass of cumuli to SE., and on NW. horizon. 5''. Loose-edged cumuli, having a cirro- 

 cumulous disposition, moving quickly. 



23 20 — 24 5. 20''. Scud and cirrous clouds. 23'' — 2''. Clear : a few cumuli on NE. horizon, and on Cheviot. 



5''. Thin cirrous clouds, with a cirro-cumulous disposition. 

 25 20 — 26 5. 20''. Sky covered with a thin watery haze, which makes a sort of oblong halo round the moon : 

 light rain. 23''. Cirrous scud : woolly cirri above : portion of a rainbow seen : rain here lately : 

 raining heavily on Cheviot. 2''. Homogeneous scud : cirrous clouds above : light rain. 5''. Cirrous 

 clouds : mottled, linear and woolly cirri, and loose cirro-cumuli : sky nearly covered with fine cirri. 



MAG. AND MET. OBS. VOL. I. 2 L 



