liv 



Meteoro logiea I Observa tio n s. 



Abstract of the Results of the Hourly Meteorological Observations 

 taken at the Surveyor General's Office, Calcutta, 

 in the month of November, I860. 



Monthly Results. 



Inclie3. 



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 19tb, . . 29.740 



'Extreme range of the Barometer during the mouth, . . . . 0.427 



Mean of the Daily Mas. Pressures, . . . . . . 30.000 



Ditto ditto Min. ditto, .. .. .. 29.874 



Mean daily range of the Barometer during the month, .. .. 0.126 



Mean Dry Bulb Thermometer for the month, 

 Max. Temperature occurred at 2 p. M. on the 19th, 

 Min. Temperature occurred at 6 A. M. on the 27th, 

 Extreme range of the Temperature during the month, . . 

 Mean of the daily Max. Temperature, 



Ditto ditto Min. ditto, 

 Mean daily range of the Temperature during the month, 



88.6 

 60.4 

 2S.2 

 84.4 

 68.8 

 15.6 



Mean Wet Bulb Thermometer for the month, 



Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer, . , 



Computed Mean Dew-point for the month, 



Mean Dry Bulb Thermometer above computed Mean Dew-point, .. 



Mean Elastic force of vapour for the month, 



68.5 



7.0 



65.0 



10.5 



Inches 



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 mouth, complete saturation being unity, 0.71 



Rained No day, Max. fall of rain during 24 hours, 

 Total amount of rain during the month, 

 Prevailing direction of the Wind, . . 



Inches 



IS T il. 



Nil, 



N. & N. W. 



