40# Meteorological Journal. [May, 1814. 



REMARKS. 



Third Month. — 14—19. Dull cloudy weather: the latter a misty day. 20. More 

 clear and springlike, after a misty morning. Cirrus, passine to Cirrocumulus and 

 Cirrostratus. 21. Rainy: tlie morning opened willi Cirroslraius lowering. 

 22 — 25. Variable springlike sky: large Cumu/us clouds, inosculating with Cirro- 

 cumulus and Cirrostratus. The Nimhus appeared occasionally : the air nearly 

 calm, with little evaporation, the mean temperature considered. 27. a.m. Over- 

 cast with Cirrostratus : a few drops of rain: p. m. Large Cirri; sunshine and 

 clouds. 28. a, m. Fair, witli Cirrus and other light clouds. 29. Overcast: Cirro- 

 stratus, with Cumulus and large Cumuloslratus clouds. SO. The evaporation is now- 

 considerable. Wind and rain by night, 31. Fine morning: wet forenoon: fair 

 afternoon. Thunder clouds appear. 



Fourth Month — I. Cloudy, a. ra. with a few drops: a fine day; the Cumulus 

 inosculates with the superior clouds : wind and rain by night. 2. Windy morn- 

 ing: squalls, with rain, p. m. A Nimbus on the N.W. horizon, with much wind, 

 at sunset. 3. a.m. Windy: Cumulus with Cirrostratus: p.m. Cirrus only, with 

 a brisk evaporation, 4. Morning overcast with the lighter modifications. 

 .5 — 11. Fair weather : generally misty mornings, with much dew, and clear days. 

 The roads are become already quite dusty by the brisk evaporation. 



RESULTS. 



Winds variable. 



Barometer: Greatest height 30-42 inches ; 



Least 29-31 inches; 



Mean of the period > 29-842 inches. 



Thermometer : Greatest height 64° 



Least 28* 



Mean 44-14* 



Evaporation 1-20 inches. Rain 1"41 inches. 



The frost may be said to have gone o6f in the first week of the present period, 

 and the mean temperature having steadily advanced since, the latter week has beea 

 seasonably warm. 



The Aurora Borealis, of late years a very unfrequent visitant in these parts, 

 appeared last night, with no grciit degree of splendour, but with the usual cha- 

 racteristic marks ol this phenomenon. About 11 p.m. when my attention was 

 first caJied to it, there was a body of white li^ht, in part intercepted by clouds, 

 extending at a moderate elevation from the 'k. to the N. W. with a short broad 

 streamer rising from each extremity. After this it liccame an arch, composed of 

 similar vertical masses of fibrous light, which moved along in succession, pre- 

 serving their polarity and curved arrangement. One large streamer, in particul.'ir, 

 went rapidly through nearly the whole lergth of the arch ifrom W. to E., in which 

 direction the rest chiefly moved. Some of these masses were rather brilliant, and 

 one exhibited colours. After some cessation, and a repetition of this appearance, 

 carried more towards E. and W. the light settled in tlie N,, aud grew fainter: is 

 which situation, at midnight, I ceased to observe it. 



Tottenham, Fourth Month, IS, 18N. L, HOWARD. 



