Meteorological Observations. 



Ixxxvn 



Abstract of the Results of the Hourly Meteorological Observations 

 taken at the Purveyor General* 8 Office, Calcutta, 

 in the month of November, 1858. 



Monthly Kestjlts. 



Mean height of the Barometer for the month, 



Max. height of the Barometer, occurred at 10 a. m. on the 18th, 



Min. height of the Barometer, occurred at 3 p. m. on the 23rd, 



Extreme Range of the Barometer during the month, 



Mean of the Daily Max. Pressures, 



Ditto ditto Min. ditto, 

 Mean Daily range of the Barometer during the month, 



Mean Dry Bulb Thermometer for the month, 

 Max. Temperature, occurred at 3 p. M. on the 3rd, 

 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,., 



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, 



Inches. 

 30.017 

 30.170 

 29.893 



0.277 

 30.091 

 29.961 



0.130 



o 



73.8 

 85.2 

 62.5 

 22,7 

 81.5 

 67.3 

 14.2 



o 



67.8 



6.0 



64.8 



9.0 



Inches. 



0.613 



Troy grains. 

 Mean weight of vapour for the month, .. .. .. 6.71 



Additional weight of vapour required for complete saturation, . . 2.27 



Mean degree of Humidity for the month, complete saturation being unity, 0.75 



Drizzled 1 day. Max. fall of rain during 24 hours, 

 Total amount of rain during the month, 

 Prevailing direction of the Wind, 



Inches. 



Nil. 



Nil. 



W. & N. W. & N, 



