Meteorological Observations. 



XXXIX 



Abstract of thfRemlU of the Hourly Meteorological Observations 

 taken at the Surveyor General's Office, Calcutta, 

 in the mouth of November 1869. 

 Monthly Results. 



Mean height of the Barometer for the month... 

 Max. height of the Barometer occurred at 9 a. m. on the 

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

 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. 





... 29.996 



12th. 



... 30.145 



30th. 



... 29.843 



, 



... 0.302 



. 



... 30.067 



. 



... 29.941 





... 0.126 



Mean Dry Bulb Thermometer for the month 

 Max. Temperature occurred at 2 p. m. on the 25th. 

 Min. Temperature occurred at 6 a. m, on the 22nd. 

 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... 



73.3 



85.0 

 62.0 

 23.0 

 81.3 

 66.4 

 14.9 



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 



66.3 



7.0 



. 60.7 



, 12.6 



Inches. 

 0.536 



Troy grain. 



Mean Weight of Vapour for the month ... ... ... 5.84 



Additional Weight of Vapour required for complete saturation ... 3.00 

 Mean degree of humidity for the month, complete saturation being unity 0.66 



Mean Max. Solar radiation Thermometer for the month 



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

 Total amount of rain during the month 

 Total amount of rain indicated by the Gauge attached to the anemo 

 meter during the month 



o 

 119.5 



Inches. 



,. Nil 

 .. Nil 



Nil 



Prevailing direction of the Wind., 



W.byN.&W.N,W. 



