Iviii Meteorological Observations. 



Abstract of the Results of the Hourly Meteorological Observations 

 taken at the Sunieyor General's Ojjice, Calcutta^ 

 in the month of July 1874. 



Monthly Eesults. 



Inclies. 



Mean lieitrlit of tlie Barometer for tlie montli ... ... ... 29.589 



Max. lieiglit of the Earoiiieter occurred at 10 a. m. on tlie 13tli ... 29.739 



Min. ]ieig]»t of tlie Barometer occurred at 5 p. m. ou the 28th ... 29.339 



Jixtreme range of tlie Barometer during the month ... ... 0.400 



Mean of the daily Max. Pressures ... ... ... ...29.645 



Ditto ditto Min. ditto ... ... ... ... 29.525 



Mean daily range of the Barometer during the month ... ... 0.120 



o 



Mean Dry Bull) Thermometer for the month ... ... ... 84.0 



Max. Temperature occurred at 4 y. m. on the 20th ... ... 94.2 



Min. Temperature occurred at 3 p. m. on the 31st ... 78.2 



Extreme range o^ the Temperature during the month ... ... 16.0 



Mean of the daily Max. Temperature ... ... ... ... 89.5 



Ditto ditto Min. ditto, ... ... ... ... 80.3 



Mean daily range of the Temperature during the montli ... ... 9.2 



Mean Wet Bulb Thermometer for the month ... ... ... 80.5 



Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer 3.5 



Computed Mean Dew-point for the month ... ... ... 78.0 



Mean Dry Bulb Thermometer above computed mean Dew-point ... 6.0 



Indies. 

 Mean Elastic force of Yapour for the montli ... ... ... 0.940 



Troy grain. 

 Mean Weight of Yapour for the month ... ... ... 10.07 



Additional Weight of Yapour required for complete saturation ... 2.10 

 Mean degree of humidity for the month, complete saturation being unity 0.83 



o 

 Mean Max. Solar radiation Thermometer for the month ... ... 136.5 



Inches. 

 Eained 24 days, — Max. fall of rain during 24 hours ... ... 3.37 



Total amount of rain during the month ... ... ... 8.89 



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

 meter during the month ... ... ... ... ... 7.79 



Prevailing direction of the Wind ... S- by E. & S. 



* Hciglit 70 feet 10 inches above ground. 



