400 lileleorohglcal Journal, [May, 1815. 



REMARKS. 

 Third Jdonlh. — Z. Small rain at intervals. 3. Misty morning: fine day. 

 4 5. CuyHulostratus, 6. Fine day : Cirri appeared, much elevated, and coloured 

 at sun-set. 7. Vine morning: p.m. cloudy and windy, with some rain: night 

 Yery stormy. 8. Windy, wet, a.m.: showers by inosculation"^ in the evening. 

 9, a.m. Hoar frost : turbid sliy : rain : p.m. fair. 10. Snow early, after which 

 various modifications of cloud, ending in showers of rain and snow, p. m. 



11. Hoar frost; Cirrostratus and Cumulostrafus : p.m. Nimbi, with large hail. 



12. Dull misty day : at night very stormy, with rain. 13. a.m. Cloudy, with a 

 gale at S. W., and rain at intervals : p.m. several dense Nimbi, thunder, hail, and 

 hard rain: much wind, with distant lightning, at night. 14. Cirrostratus and 

 haze: then Cirri, passing to dense Nimbi: gusts of wind, hail, and rain. 15. Th« 

 barometer has risen, with an almost uaiform motion, about an inch and a quarter in 

 36 hours; yet the air has not become clear : it should be observed, that there had 

 been much previous depression : a Wet forenoon, with a breeze at E. : p. m. Cir- 

 Tostratus: at night much wind. 16. a. m. High wind at S.AV., with Cumulostratus : 

 fair and pleasant. 17. a.m. Much dew: Cirrostratut, with Cirrocumulus : the 

 light clouds after sun-set beautifully tinted with lake and purple. 18. After a 

 few drops, the Cumuhstraius prevailed, followed by rain in the night. 19. Some 

 rain am.: then Cumulostratus : and at evening Ciirosira^us, with a lunar corona. 

 SO. a.m. Dew : a light veil of Cirrostratus : at evening, the clouds passed to the 

 N. 21. Cumulus, beneath Nimbiform Cirrus, both elevated: about five, p.m. 

 durinc llie approach of a squall, the wind was very noisy among the branches 

 (now covered with opening buds), producing an almost vocal modulation of bOund: 

 as soon as the trees became wet, th's was exchanged for the usual hoarse noise, 

 resembline that of the sea-shore. It is probable that the former eflfect requires a 

 peculiar sonorous viliration in the branches, the effect of close friction by tJie air, 

 which the interposition of water does not permit to take place. The night was 

 boisterous. 22. Much wind: showers: two strata of cloud: borne very high, as 

 for some davs ])att. 23. Heavy squalls, with some hail in the showers : p.m. a 

 singular combination of clouds in the E. : it was a Nimbus, with Cumu/i adhering 

 and entering at the ftanks, while a very lofty columnar Cumu/us shot up through 

 the midst of the crown, and this again was capped with a small Cirrostratus. 

 24. Various clouds : squally, p.m. 25. The same : a brisk evaporation : at sun- 

 let. Cumulus at a considerable height, inosculated with Cirrus above, after which 

 two distinct A'fniJi in the S., which went away eai-tward. 26. Driving showers : 

 at evening a lunar corona, followed by much wind and rain at intervals. 

 27. Stormy : showers. 28. Fair. 29. Large Cirri, which passed chiefly to the 

 Cirrocumulus, p.m. 30. Misty, a.m.: overcast, p.m.: little wind. 31. Avery 

 £ne day : large Cirri formed alone at a considerable elevation, and passed in the 

 evening to the N. W, : much dew followed. 



RESULTS. 

 "Winds Westerly, 



Barometer: Greatest height 30'22 inches ; 



Least 28 86 inches; 



Mean of the period .29'672 inches. 



Thermometer: Greatest height ...lij" 



Least 29* 



Mean of the period 47 •44* 



Evaporation, r4.'< inch. Rain, 2'33 iuches. 

 ToTTS»Diix, Fourth ilontli, 1, 1815. L. IIOWAUP. 



