Meteor o log ica I Observa tions. 



xcm 



Abstract of the Results of the Hourly Meteorological Observations 

 taken at the Surveyor General's Office, Calcutta, 

 in the month of November 1875. 



Monthly Results. 



Inches. 

 Mean height of the Barometer for the month ... ... ... 29.988 



Max. height of the Barometer occurred at 9 & 10 a.m. on the 13th & 17th 30.149 

 Miu. height of the Barometer occurred at 4 p. m. on the 3rd ... 29.867 



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 



0.282 

 30.060 

 29.934 



0.126 



Mean Dry Bull) Thermometer for the month ... 



Max. Temperature occurred at 3 p. M. on the 6th 

 Min. Temperature occurred at 7 A. M. on the 24th ... 

 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 



o 

 73.7 

 86.0 

 61.3 

 24.7 

 82.2 

 66.5 

 15.7 



66.8 



6.9 



62.0 



11.7 



Inches. 

 0.559 



Mean Weight of Vapour for the month 



Additional Weight of Vapour required for complete saturation 



Mean degree of humidity for the month, complete saturation being 



Mean Max. Solar radiation Thermometer for the month ... 



Troy grain. 

 6.10 



... 2.86 

 unity 0.68 



o 

 ... 136.9 



Inches. 

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



Total amount of rain during the month ... ... ... Nil 



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

 meter during the month ... ... ... ... ... Nil 



Prevailing direction of the Wind ,., W, N. W. & S W. 



* Height 70 feet 10 inches abovo ground. 



