160 Mr. Howard's Meteorological Journal. [Fee. 1820, 



REMARKS. 



Tvselfth Month.— I. Cloudy. 2. Rainy morning. 3. Hoar frost: fine day. 

 4, Kainy morning and evening. 5, 6. Overcast. 7. Some snow this morning; 

 much wind at night. 8. Fine: windy: thermometer at Tottenham, 16°. 9. Snow 

 in the night, covering the ground above an inch deep. 10. Cirrus, Cinocwmilus : 

 fine: thermometer .it Tottenham, 8°. 11. Very foggy morning: gloomy day. 

 12. Morning, fine: snow and sleet, p.m. 13. A little sleet : about six, p. ro. a 

 shower of rain, after which it began to freeze again. 14. Cirrocumulus: fine. 

 15. Fc^y morning: a thaw commenced about 10, a.m. and went on till about the same 

 hour, p. m. 16. Foggy : frost continued through the day, but at night it was very 

 stormy, with rain from the S and SE. 17. Rainy. 18—20. Cloudy and gloomy. 

 21. Rain. 23. Cirrus, Cirrostratus, Cumulostralus. 24—27. Hoar frosts: fair. 

 28. A pretty considerable fall of snow, leaving an inch depth on the ground after^ 

 in part, melting as it fell. 29 — 31. Fine: Cirrus: snow on the ground. 



RESULTS. 

 Winds: N, 2; NE, 5; E, 1 ; SE, 3 ; SW, 14; W, 1; NW, 4; Var, 1, 



Barometer: Mean height 



For the month , 29*81 4 inches. 



For the lunar period, ending the 8th 29'875 



For 14 days, ending the 10th (moon nor(h) 29989 



For 13 d.iys, ending the 23d (moon south) 29'79() 



Thermometer: Mean height 



For the month. 34'1 2° 



For the lunar period (as above) . . . ., 37 '88 



For 30 days, the sun in Sagittarius 36'65 



Hygrometer : Mean for the month SS"54 



Evaporation 0*79 inch.. 



Rain 2-45 



By a second guage 2'48 



And at Tottenham 2-64 



*»* The mean temperature of the month at Tottenham, with three days' observa- 

 tions, in ditferent parts supplied from the above table, is 33'56°. The thermometer 

 at Tottenham has rather the more open exposure of the two. A fine exhibition of 

 the Aurora Borealis was observed there between 1 1 and 12, p, m. on the 14th of tbe 

 present month. 



Laboratory, Slratford, First Month, 25, 1820. L, HOWARP, 



