BO 



Meteorological Journah [Jan. 1813. 



REMARKS. 



Tinih Jlonih. — 21. Misty and overcast, a. m. Wet at noon : p. ro. the 



lirf 'meter descended ai il.e rate of a tenth of aa inch per hour, the wind in-^' 

 < 1. ^- in pioporiion, vviiSi Dinoh rain, the clouds sweeping the earthc The 

 t-, . 'fi{^ very tempestuous: oefore midnight the barometer had risen again^ 

 an. the weather became iiiOderaie. Many large trees were blown down. 

 ti6 u.tn Hoar frost, rather misr_. A . sssn-set, the sky exhibited a fine col- 

 io:-' of coloured clouds, in the m 'ions Nimbus and Cirrus^ together 



•^l uii r . ' pfiralirl bands of red, ihe aa^-e above them. 29. Fair and calm, 

 BO. (i 'isiuirn an 1 Ci/wji^ws the ^kv agai a beautifuiiy coloured. 



ii ^ .,n\ ..i uih,—l. Cloudy. 2. a.m. Wet. 5. Fine day, 6,8,9,10, 

 11. . ,! ,i I -f> or clop.dy, with hoar froi^t, and some very thick local fogs. 

 Jl. C\.' 'V I, .i m. The Cirrostratus prevails, and rounds travel with the 

 Tt W >1 i, .'iiu-naS distance : we hear the rattiing of the carriages on tiie pave-. 

 r.\ ' 10 I oiid<ji, thrcygh a direct mean distance of live nsileai. This phenome- 

 Kjn f .o be aittributed to a thick coniiguous sheet of haze in the air above nS, 

 ^ nit ^ a' fs as a so'inding board. 12. fiain through the day. 13. Misty : rain : 

 t,<K"5ds are again distinctly heard from the city. 15. Fair: a Stratus at nights 

 16. Overcast; with an easterly gale. 18. Yvet and stormy day; night clear 

 and calm. £0. Misty : rime on the trees, which came off, about noon, in 

 showers of ice. At II a„ m. a perfect, bn: colourless bow, in themi6^; near 

 4 p. la. there was a shower, in which the rainbow sisowed its proper colours. 

 g2. Clear: the ground just sprinkled w ith hail balls. 23. a.m. Misty; rime: 

 p. 111. clearer : thaw in the night. 24. Clear morning, 



ilESULTS. 



ViTinds (for the greater part) westerly : the easterly have been most assoeiateJ 



v/fthxain. 



Barometer: pighest observatioo , 30"38 inches ; 



Lo V. est ?8-96 inches ; 



Mean of ihe period „ 29-6T3 inches. 



Thermometer : Gxeaic- heigUt o .55^ 



Least.,... 24° 



Mean. 41-31° 



EvaporalitHi 0'58 inches. Rain 2°46 iiiChcs. 



Plaistow, Tti;elfth 3Uath, 18, 1812. L. HOWARD, 



NOTE BY THE EDITOR. 

 Luke Hov/ard, Esq. to wkom we are indebted for eur Meteorological Tabie, 

 some years ago contrived a nomenclature for the d'lFerent appearances of the 

 clouds. As this nornenclatnre is ea-iployed in ti'ie "ireccding observations, we 

 thisik it right to give a short explanadon of it here. The terms are seven. 



1. Cirrus. Parallel, flesuoas, or diverging fibres, estensibie in any or in 

 all directions. 



2. Cumulus. Convex or conical heaps, increasing upwards from a horizontal 

 base. 



3. Stratus. A widely extended, continuous, horizontal sheet, increasing 

 from beiow. ' ■ " 



•4. Cirro-cumulus. Small, well deSned, roundish masseSy in close horizontal 

 arrangement. 



5. Cirrostratus. Horizontal or slightly inclined masses, attenuated towards 

 a part or die whole of their circamference, bent downwards or undulatedy 

 'Beparate or in groups, consisting of small clouds having; these characters. 



6. Giimulo-straius. The cirro-stratus blended with the cnj-tuiius,, and either 

 appearing intermixed with the hejps of the latter, or superadding a wide- 

 spread stritcf'iie to its base. 



7. Cumulo-clrrostratus, c,T Nimbus, The rain cloud. A horizontal sheet above, 

 which the cirrus spreads, vvhile tlie cumiiius enters itlatcraUy and from beneatb. 



It will be observed tijat Par, Howard begins his journal at the moon's last 

 quarter. 



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