Metcorological Ohservations. 



Ahsiracl of the Residts of the Ilourlg Metcorological Ohservations 



takcn at the Surveyor GeneraVs OJJlce, Calcutta, 



iii the month of August, 1860. 



Monthlt Eesults. 



Mean heiglit of the Barometer for the month, 



Max. lieiglit of the Barometer, occurred at 10 A. M. on the 27th, 



Min. height of the Barometer, occurred at 3 P. m. on the 3rd, 



Extreme range of the Barometer during the month, 



Mean of the Daily Max. Pressures, 



Ditto ditto Min. ditto, 

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



Inches 

 29.605 

 29.826 

 29.363 



0.463 

 29.662 

 29.544 



0.118 



Mean Dry Bulb Thermometer for the month, 

 Max. Temperature occurred at 2 p. m. on the llth, 

 Min. Temperature occurred at 4 a. m. on the 21st, 

 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 



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 forcé of vapour for the month, . , 



o 

 83.6 



95.6 

 78.7 

 16.9 

 88.0 

 80.4 

 7.6 



o 



80.5 

 3.1 



78.9 



4,7 



Inches 



0.967 



Troy grains 

 Mean weight of Vapour for the month, .. .. .. 10.37 



Additional weight of Vapour required for complete saturation, .. 1.G6 



Mean degree of humidity for the month, complete saturation being unity, 0.86 



Kained 25 days, Max. fall of rain during 2 1 hours, 

 Total amount of rain during the month, 

 Prevailing direction of the Wind, 



Inches 



2.13 



11,65 



S. &E. 



