METEOROLOGICAL JOURNAL, 37 



NOTES. 



Eleventh Month.. 7., A calm pleasant day. 8. Cloudy, drizzling. 9. Wiiitl, a. m. 

 N. W. : a dripping- mist : then clear and calm : clrnistratus, evening : rain before nine 

 the next moruiai''. 10. "A'tw/«" at sunset, witli r<d haze on a brilliant twilight. 11. 

 At sunset the clouds ctlouretl in the E. : a rtimhus in the W . : windy night. 13. A 

 clear sunset beneath denRe clouds. 14. Windy, S. W. a.m. 15. Clear, wiisdy : nimbi 

 at .sunset to S. 18 .Drippin;; inist. ](). Fair: cumuli p. m. which evaporating at 

 sunset, a beautiful red twilight ensued, with ci/tostTcilus. 20. a.m. Hoar frost and 

 ice, the fir.^t this sea.son : clear day^ with rir?H,« clouds: at sunset, the purplish haze 

 of the <lev/ was conspicuous, and the twilight of a rich crimson, with converi»ir.g 

 darker streaks upon it, i»rohah!y the shadows, of prominent objects on the earth. 21. 

 Hoarfrost: a xtralu'! in the evening. 2-2. Cloudy through the day in the superior 

 atmosphere : twilight milky and luminous, with a blush of red. 23. Much rime on 

 the grass, &c.: the sua emciged suddenly froui the surface of a dense frozen mist, cirri 

 stretching from E. to W., cirroslrnti and cumuli beneath : the evening guite overcast. 

 24. Various modifications of cloud ending in curmdostratus. 25. Morning twilight red. 

 26. Calm: lightly clouded, ij/. Overcast; a few drop;* p. m. 29. At sunset, a */ra- 

 ^^(5, with a veil of su[>erior clouds on the w'estcrn sky richly coloured, the reflection 

 from which gave considerable colour to the stratus itself: wind above, N. W. 30. 

 Cloudy. The weather has beenrahn since the 15th inst. 



Twet/th Month 1. This ujornina; the wind rose, bringing much cloud, with a few 

 drops of rain: the night was stoiiay, and the evaporation was increased near sixfold : 

 hence the formation uf so great a mass of cloud, the superior alinusphere not being 

 in a state to take up the water. 2. Rain commenced soon after eight a. m.; about 

 this time too the thermometer, which had been rising, began to fall ; the baromctei, 

 which had been descendinij, to rise ; and the wind, which had been S. W., to go to the 

 N. 3. Wind, a. in. fresh at S. W. : the sky overcast, chiefly with ciV7-05<ra/«is: stormy 

 night: a shower about one a. m., after which the wind abated. 4.Clear, wmdy, a. m : 

 various clouds p. m. 5. Snow early this morning: wind N.: evening twilight orange 

 coloured, but with faiater horizontal streaks of cloud above it, which were also dis- 

 cernible at the ensuing sunrise, w ith cirro-stratus beneath : windy. 



RESULTS. 



Barometer: highest observation 30'41 inches; lowest 29-21 inches; 

 Mean of the period 29-898 inches. 



Thermometer: highest observation 5.'5°-, lowe,st 22° ; 

 Sleanof the period 42-95°. 



Evaporation 1-49 inches. Rain on the surface of the Earth, 1-41 inclies: at 43 (cet 

 elevation 097 inches. 



Wind chiefly S. W. and N. W. The fore part of the period wet, the middle fair and 

 tending to frost, the couclusion windy and changeable. There has been a strong 

 t2ndency to the red refraction during twilight. 



L. HOWARD. 



Plaistow, Twelfih Mo. 9, 1.811. 



IX 



