bet Meteorological Observations. 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
in the month of February, 1863. 
Montuty REsutts. 
Inches 
Mean height of the Barometer for the month, .. se e. 29.940 
Max. height of the Barometer occurred at 10 A. M. on the 24th, ee 30.097 
Min. height of the Barometer occurred at 4 P. M. on the 4th, e. 29.812 
Extreme range of the Barometer during the month, 50 e» 0.285 
Mean of the Daily Max. Pressures, .. oe se -- 30.029 
Ditto ditto Min. ditto, .. 90 oc co) Shstelll 
Mean daily range of the Barometer during the month, .. ss 0.139 
Co) 
Mean Dry Bulb Thermometer for the month, .. ce “Bd 71.6 
Max. Temperature occurred at 3 Pp. M. on the 28th, se ee 87.8 
Min. Temperature occurred at 6 A. M. on the 23rd, oe oe 59.4: 
Extreme range of the Temperature during the month, .. oe 28.4 
Mean of the daily Max. Temperature, 50 ee eo 81.1 
Ditto ditto Min. ditto, .. 50 ee 50 63.4 
Mean daily range of the Temperature during the month, .. ee 17.7 
Mean Wet Bulb Thermometer for the month, .. O0 Sc 64.0 
Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer, .. 7.6 
Computed Mean Dew-point for the month, .. ee ee 57.9 
Mean Dry Bulb Thermometer above computed Mean Dew-point, ae 13.7 
. Inches 
Mean Elastic force of Vapour for the month, .. ee ee =: 0.488 
Troy grains 
Mean Weight of Vapour for the month, ee ee 30 5.34 
Additional Weight of Vapour required for complete saturation, 20 3.06 
Mean degree of humidity for the month, complete saturation being unity, 0.64 
Inches 
Rained 5 days, Max. fall of rain during 24 hours, ae ee 0.96 
Total amount of rain during the month, oe ee ee 1.20 
Prevailing direction of the Wind, .. ee “ee W.&N. & BE. 
