lxxiv Meteorological Observations. 



Abstract of the Besults of the Hourly Meteorological Observations 



taken at the Surveyor General* s Office Calcutta, 



in the month of March, 1856. 



Monthly Bestjlts. 



Inches. 

 Mean height of the Barometer for the month, .. .. 29.860 



Max. height of the Barometer occurred at 10 a. m. on the 3d, .. 30.080 



Mio. height of the Barometer occurred at 6 p. m. on the 25th, .. 29. 619 



Extreme range of the Barometer during the month, .. 0.461 



o 



Mean dry bulb Thermometer for the month, .. .. 80.2 



Max. Temperature occurred at 3 p. m. on the 31st, .. .. 95.6 



Min. Temperature occurred at 10 p. m. on the 20th, .. 67- 6 



Extreme range of the Temperature during the month, .. 28.0 



Mean wet bulb Thermometer for the month, .. .. 74.9 



Mean dry bulb Thermometer above mean wet bulb Thermometer, .. 5.3 



Computed mean dew point for the month, .. .. .. 72.2 



Mean dry bulb Thermometer above computed mean dew point, .. 8.0 



Inches. 

 Mean elastic force of vapour for the month, .. .. .. 0.781 



Troy grains. 

 Mean weight of vapour for the month, .. .. .. 8.41 



Additional weight of vapour required for complete saturation, .. 2.47 



Mean degree of humidity, for the month complete saturation being unity, 0.77 



Inches. 



Rained 6 days. — Max. fall of rain during 24 hours, .. .. 52 



Total amount of rain during the month, .. .. 2.23 



