Meteorological Observations in Upper Assam. 443 



At Sunrise. 2 p. m. Sunset. 



Bar. 29.4123 inch 29.4016 inch 29.3966 inch. 



Ther. 59.28° 72.45° 70.73o. 



Greatest pressure observed 29.55 inch, least ditto 29.21 inch. 

 Highest temperature 79° lowest ditto 53° 

 Greatest variation, Bar. 0.34 inch. Ther. 26°. 

 December. — Rain on the 1st, after which fair, with foggy mornings. 

 Mean height of Barometer 29.449 inch. Ther. 60.46°. 



At Sunrise. 2. p. m. Sunset. 



Bar. 29.4493 inch 29.4519 inch 29.4459 inch. 



Ther. 51.69° 65.66° 64.03°. 



Greatest pressure observed, 29.53 inch, least ditto 29.36 inch. 

 Highest temperature 72° lowest ditto 47°. 

 Greatest variation, Bar. 0.17 inch. Ther. 25°. 

 Mean pressure of the year, 29.2812 inch. 

 Mean temperature, 73.71°. 



Greatest pressure observed 29.55 inch, least ditto 28.80 inch. 

 Highest temperature 92° lowest ditto 46°. 

 Greatest variation, Bar. 0.75 inch. Ther. 46°. 

 Nazera, 3lst December, 1840. 



January 1S41. — Dull, foggy, misty weather, rain on night of the 1st, 

 14th, and 21st. Evenings generally clear, but mornings foggy, and the 

 sky during the greater part of the day either overcast with clouds, or 

 covered with thick haze. 



Mean height of Bar. 29.4882 inch. Ther. 61.36°. 



At Sunrise. 2 r. m. Sunset. 



Bar. 29.4938 inch 29.4851 inch 29.4858 inch. 

 Ther. 55.11° 65.06° 63.93°. 



• Greatest pressure observed 29.68 inch, least ditto 29.37 inch. 

 Highest temperature 70°, lowest 50°. 

 Greatest variation, Bar. 0.31 inch. Ther. 20°. 



February. — A dull foggy, cloudy, hazy, unpleasant, feverish month ; 

 not a single fine clear day ; rain on the 28th, and heavy rain and thun- 

 der at night on the 5th, 7th, 12th, 24th, 25th, 27th, and 28th. 

 Mean height of the Bar. 29.4830 inch. Ther. 63.73°. 



At Sunrise. 2 p. m. Sunset. 



Bar. 29.4928 inch 29.4917 inch 29.4677 inch. 



Ther. 56.67° 67.75° 66.77°. 



Greatest pressure observed 29.61 inch, least ditto 29.30 inch. 

 Highest temperature 71°, lowest ditto, 50°. 

 Greatest variation, Bar. 0.31 inch. Ther. 21°. 



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