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Meteorological Observations. 
Abstract of the Hesults of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office , Calcutta , 
in the month of November, 1860. 
Monthle Results. 
Inches. 
Mean height; of the Barometer for the month, .. .. 29.930 
Max. height of the Barometer, occurred at 10 A. M. on the 27th, .. 30.167 
Min. height of the Barometer, occurred at 3 & 5 p. M. on the 19th, .. 29.743 
'Extreme range of the Barometer during the month, .. .. 0.427 
Mean of the Daily Max. Pressures, . . . . . . 30.000 
Ditto ditto Min. ditto, . . . . . . 29.S74 
Mean daily range of the Barometer during the month, . . . . 0.126 
o 
Mean Dry Bulb Thermometer for the month, .. .. 75.5 
Max. Temperature occurred at 2 p. m. on the 19tli, .. .. 88.6 
Min. Temperature occurred at 6 A. M. on the 27 th, . . . . 60.4 
Extreme range of the Temperature during the month, . . . , 28.2 
Mean of the daily Max. Temperature, .. .. .. 84.4 
Ditto ditto Min. ditto, .. .. .. 68.8 
Mean daily range of the Temperature during the month, .. 15.6 
o 
Mean "Wet Bulb Thermometer for the month, .. .. 68.5 
Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer, . . 7.0 
Computed Mean Dew-point for the month, . . . . 65.0 
Mean Dry Bulb Thermometer above computed Mean Dew-point, .. 10.5 
Inches 
Mean Elastic force of vapour for the month, . . . . . . 0.617 
Troy grains 
Mean weight of Vapour for the month, .. .. .. 6.72 
Additional weight of Vapour required for complete saturation, .. 2.74 
Mean degree of humidity for the month, complete saturation being unity, 0.71 
Inches 
' Earned No day, Max. fall of rain during 24 hours, .. .. Nil. 
Total amount of rain during the month, . . . . . . Nil. 
Prevailing direction of the Wind, .. .. N. & N. W. 
