Meteorological Ohscrvalioiis. xxxi 



Ahalract of the Results of the Iloiorl// Meteorological Olservatious 



taken at the Survegor GeueraVs Office^ Calcutta^ 



iu the mouth of April 1872. 



Monthly Besults. 



Inches. 



Mean Leii^lit of the 33arometer for tlie month ... ... ... 29.760 



Max. height of the Barometer occurred at 10 a. m. on the 1st. ... 30.030 



Min. height of tlie Barometer occurred at 4 p. m. on the 2Dth. ... 29.519 



Hxtreme range of the Barometer during the month ... ... 0.511 



Mean of tlie dailj^ Max. Pressures \.. ... ... ...29.831 



Ditto ditto Min. ditto ... ... ... ... 29.684 



Mean daily range of the Barometer during the mouth ... ... 0.147 



o 



Mean Dry Bulb Thermometer for the month ... ... ... 85.6 



Max. Temperature occurred at 3 r. m. on the lOtli. ... ... 100.5 



Min. Temperature occurred at 7 a. m, on the 1st ... ... 71.5 



Extreme range of the Temperature during the month ... ... 29.0 



Mean of the daily Max. Temperature ... ... ... ... 94.9 



Ditto ditto Min. ditto, ... ... ... ... 78.3 



Mean daily range of the Temperature during the month ... ... 16.6 



Mean "Wet Bulb Thermometer for the month ... ... ... 77.7 



Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer 7.9 



Computed Mean Dew-point for the month ... ... ... 72.2 



Mean Dry Bulb Thermometer above computed mean Dew-point ... 13.4 



Inches. 

 Mean Elastic force of Yapour for the month ... ,,, ... 0.781 



Troy grain. 

 Mean Weight of Vapour for the month ... ... ... 8.33 



Additional Weight of Vapour required for complete saturation ... 4.43 

 Mean degree of humidity for the month, complete saturation being unity 0.65 



o 

 Mean Max. Solar radiation Thermometer for the month ... ... 142.3 



Inches. 

 Rained 10 days, — Max. fall of rain during 24 hours ... ... 0.73 



Total amount of rain during the month ... ... ... 1.83 



Total amount of rain indicated by the Gauge* attached to the anemometer 

 during the month ... ... ... ... ... ... 1.36 



Prevailing direction of the Wind ... S. S. W, S. by AV. & S. 



* Height 70 feet 10 inches above ground. 



