Meteorological Observations. Xev 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of June, 18638. 
Montuity REsUtLts. 
Inches 
Mean height of the Barometer for the month, ee oe 29.507 
Max. height of the Barometer occurred at 8 A. M. on the 9th, ne 29.738 
Min. height of the Barometer occurred at 4 a. M. on the 27th, ee 29.189 
Extreme range of the Barometer during the month, ote es 0.549 
Mean of the daily Max. Pressures, os ee 56 29.569 
Ditto ditto Min. ditto, 00 a0 S06 29.442 
Mean daily range of the Barometer during the month, .. ate 0.127 
to) 
Mean Dry Bulb Thermometer for the month, ee ee 84.4 
Max. Temperature occurred at 2 Pp. M. on the 2nd, ae 50 98.6 
Min. Temperature occurred at 11 p. M. on the 6th, a3 ate 77.0 
Lixtreme range of the Temperature during themonth, .. 90 21.6 
Mean of the daily Max. Temperature, se se 06 90.0 
Ditto ditto Min. ditto, 60 OO 00 79.9 
Mean daily range of the Temperature during the month, ae 10.1 
fy) 
Mean Wet Bulb Thermometer for the month, Be pis 80.0 
Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer, .. 4.4: 
Computed Mean Dew-point for the month, ee 76.9 
Mean Dry Bulb Thermometer above computed Mean toe “point, .. 7.5 
Inches 
Mean Elastic force of Vapour for the month,.. 90 50 0.908 
Troy grains 
Mean Weight of Vapour for the month, sé AS a 9.70 
Additional Weight of Vapour required for complete saturation, sie 2.61 
Mean degree of humidity for the month, complete saturation being unity, 0.79 
Inches 
Rained 26 days, Max. fall of rain during 24 hours, .. ae 3.19 
Total amount of rain during the month, .. ste a6 12.93 
Prevailing direction of the Wind, oe ee ae, See 
