Ixvii 



Mc tcoro lo(j lea I Ohser va tions. 



Abstract of the Kesnlts of the ITourl/j Meteorological Ohservations 



taken at the Survetjor General's Office, Calcutta^ 



in the mouth of August 1872. 



Monthly Results. 



Mean hoi gilt of tlie Barometer for tlie month 



]\lax. hciii;lit of ilie Barometer occurred at 10 a. m. on the 31st. 



Min. Lciglit of tlie Barometer occurred at 4 p. m. on tho 20 tli. 



Hxtveme range of the Barometer during the month 



]\lean of tlie daily Max. Pressures 



Ditto ditto jMin. ditto 

 Mean daily range of the Barometer during the month 



Inches. 



, 29.590 

 , 29.867 

 , 29.438 

 0.429 

 , 29.643 

 , 29.529 

 , 0.114 



Mean Dry BulL Thermometer for the month 

 Max. Temperature occurred at 2 & 3 r. m. on tho 5th & 28th. 

 Min. Temperature occurred at 4, 5, 6, & 7 a. m, on the 15th 

 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 .. 



o 

 83.1 

 92.0 

 77.5 

 14.5 

 88.0 

 80.1 

 7.9 



Mean "Wet Bull) Thermometer for the month ... ... ... 80.7 



Mean Dry Bulb Tliermometcr above Mean Wet Bulb Tliermometer 2.4 



Computed Mean Devr-point for the month ... ... ... 79.0 



Mean Dry Bulb Thermometer above computed mean Dew-point ... 4.1 



Inches. 

 Mean Elastic force of Vapour for the month ... ... ... 0.970 



Troy grain. 

 ]\rean "Weight of Yapour for the month ... ... ... 10.42 



Additional Weight of A^apour required for complete saturation ... 1.44 

 Mean degree of humidity for the month, complete saturation being unity 0.88 



Mean Max. Solar radiation Thermometer for the month 



o 

 136.9 



Inches. 

 Tvained 29 days, — Max. fall of rain during 24 hours ... ... 2.42 



Total amount of rain during the month ... ... ... 11.52 



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

 durinir the month ... ... ... ... ... ... 11.01 



Prevailing direction of the Wind 



s. &s. s.w. 



Height 70 feet 10 inches above ground. 



