Meteorological Observations. xniii 



jLlslraH of fJte "Results of the Hourly ~He!eoroh>gical Observations 



taken at the Surveyor General's Oj/ice, Calcutta, in the 



mouth of March 1SG7. 



Monthly Insults. 



Indies. 



Mean height of the Barometer for the month... ... ... 29.89-1 



Max. height of the Barometer occurred ;it 10 a. ir. on the 9th ... 80.080 

 ]\I in. height of the Barometer occurred a( Ikb v. m. 011 the 2ist&22nd 29.725 



Extreme range of. the Barometer during the mouth ... ... 0.355 



Mean of the daily Max. Pressures ... ... ... ...29.970 



Ditto ditto " Mm. ditto ... ... ... ... 29.821 



Mean daily range oi the Barometer during the mouth ... ... O.l-i'J 



Moan Dry Bull) Thermometer for the month ... ... ... 80.1 



Max. Temperature occurred at 4 p. m. on the 3rd ... ... 94.2 



Min. Temperature occurred al 5 k. M. on the 31st ... ... 08. 



Extreme range of the Temperature during the month ... ... 25.6 



]\Jean of the daily Max. Temperature ... ... ... ... 89.9 



Ditto ditto Min. ditto, ... ... 72.5 



Mean daily range of the Temperature during the month... ... 17.4 



Mean "Wet Bulb Thermometer for the month ... ... ... 72.7 



Mean Dry Bull) Thermometer ahove Mean Wet Bulb Thermometer 7.1 



Computed Mean Dew-point for the month ... ... ... C7.5 



Mean Dry Bulb Thermometer above computed mean Dew-point ... i2.G 



Inches. 

 Mean Elastic fores of Vapour for the month ... ... ... 0.C70 



Troy grain. 



Mean "Weight of Vapour for the month ... ... ... 7. £3 



Additional Weight ot Vapour required for complete saturation ... 3.01 

 Mean degree of humidity tor the month, complete saturation being unity 0.07 



Inches. 



Rained 9 days, — Max. fall of rain during 21 hours ... ... 3.15 



Total amount of rain during the month ... ... ... 1.57 



Total amount of rain indicated by the Gauge attached to the anemo- 

 meter during the month ... ... ... ... ... 1 ?G 



Prevailing direction of the Wind... ... ... ... S. & S. S. W. 



