lxxxvi 



Meteorological Observations. 



Abstract of the Results of the Sourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of April, 1856. 



Monthly Results. 



Mean height of the Barometer for the month, 

 Max. height of the Barometer, occurred at 10 a. m. on the 1st, 

 Min. height of the Barometer, occurred at 5 p. m. on the 8th, 

 Extreme range of the Barometer, during the month, 



Inches. 

 29.726 

 29.918 

 29.500 

 0.418 



Mean Dry Bulb Thermometer for the month, 

 Max. Temperature, occurred at 3 p. m. on the 15th, 

 Min. Temperature, occurred at 1 p. m. on the 26th, 

 Extreme range of the Temperature, during the month, 



o 



85.8 



98.0 

 73.0 

 25.0 



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, .. . 



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 unity, 



ained 2 days. Max. fall of Rain during 24 hours, 

 Total amount of rain during the month, 



79.3 

 6.5 



76.0 



9.8 



Inches. 



0.882 



Troy grains. 



9.41 



3.42 



0.73 



Inches. 



0.42 



0,62 



