xl 



VI 



Meteorological Observations. 



Abstract of tlw Results of the Hourly Meteorological Observations 

 talcen at the Surveyor General 's Office, Calcutta, 

 in the month of November, 1859. 



Monthly Eestjlts. 



Mean height of the Barometer for the month, 



Max. height of the Barometer, occurred at 10 A. M. on the 23rd, 



Min. height of the Barometer, occurred at 4 A. M. on the 4th, 



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, 



Inches 

 29.955 

 30.076 

 29.807 



0.269 

 30.028 

 29.899 



0.129 



Mean Dry Bulb Thermometer for the month, 

 Max. Temperature occurred at 1 & 2 P. M. on the 5th, 

 Min. Temperature occurred at 7 A. M. on the 30th, 

 Extreme range of the Temperature during the month, 

 Mean of the daily Max. Temperatures, 

 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, . . * . 



o 

 74.3 

 86.8 

 62.3 

 24.5 

 82.9 

 67.6 

 15.3 



o 



68.4 

 5.9 



65.4 

 8.9 



Inches 

 0.626 



Troy grains. 

 Mean weight of vapour for the month, .. .. .. 6.82 



Additional weight of vapour required for complete saturation, . . 2.30 



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



Rained no days. — Max. fall of rain during 24 hours, 

 Total amount of rain during the month, 

 Prevailing direction of the Wind, 



Inches 



Nil. 



Nil. 



N. & N. W. & S. W 



