Meteorological Observations. 
sxxi 
Abstract of the Hesults of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta , 
in the month of August, I860. 
Monthly Eeshlts. 
Inches 
Mean height, of the Barometer for the month, .. . . 29.605 
Max. height of the Barometer, occurred at 10 A. M. on the 27th, .. 29.826 
Min. height of the Barometer, occurred at 3 P. M. on the 3rd, .. 29.3C3 
Extreme range of the Barometer during the month, .. .. 0.463 
Mean of the Daily Max. Pressures, . . . . . . 2D.GG2 
Ditto ditto Min. ditto, . .. .. .. 29.544 
Mean daily range of the Barometer during the month, .. .. 0.118 
o 
Mean Dry Bulb Thermometer for the month, .. .. 83.0 
Max. Temperature occurred at 2 P. M. on the 11th, .. .. 95.6 
Min. Temperature occurred at 4 a. m. on tho 21st, .. 78.7 
Extreme range of the Temperature during the month, . . . . 16.9 
Mean of the daily Max. Temperature, .. .. .. 88.0 
Ditto ditto Min. ditto, .. .. .. 80.4 
Mean daily range of the Temperature during the month, .. 7,0 
o 
Mean Wet Bulb Thermometer for the month, .. .. 80.5 
Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer, . . 3.1 
Computed Mean Dew Point for the month, .. .. 78.9 
Mean Dry Bulb Thermometer above computed Mean Dewpoint, .. 4.7 
Inches 
Mean Elastic force of vapour for the month, . . . . . . 0.9G7 
Troy grains 
Mean weight of Vapour for the month, .. .. .. 10.37 
Additional weight of Vapour required for complete saturation, .. l.CG 
Mean degree of humidity for the month, complete saturation being unity, 0.S6 
Inches 
2.13 
14.65 
S. & E. 
Rained 25 days, Max. fall of rain during 2 1 hours, 
Total amount of rain during the month, 
Prevailing direction of the Wind, 
* •• 
