Meteorological Observations. Ix 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, in the 
month of August 1866. 
Montuty ReEsvtts. 
Inches. 
Mean height of the Barometer for the month... ... 29.584 
Max. height of the Barometer occurred at 10 a. “M. on the 30th, ... 29.822 
Min. height of the Barometer occurred at 4p. mM.on the 7th, ... 29.532 
Extreme range of the Barometer during the month, a ... 0.490 
Mean of the daily Max. Pressures, ... st nee ... 29.642 
Ditto ditto . Min. ditto ».. 29.519 
Mean daily range of the Barometer during the ‘month, sot Onli23 
oO 
Mean Dry Bulb Thermometer for the month, _... = seis (HSEAD 
Max. Temperature occurred at 5 Pp. M. on the 31st, nce Je es 
Min. Temperature occurred at 5 a. m. on the 28th, ibe son Oe 
Katreme range of the Temperature ee the month, Bat » 14.4 
Mean of the daily Max. Temperature . hs ee at SURO 
Ditto ditto Min. ditto, a joa GD) 
Mean daily range of the Temperature during the month,.. sia Tod 
Mean Wet Bulb Thermometer for the month, ... 80.2 
Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer, 2.7 
Computed Mean Dew-point for the month, ie 78.3 
Mean Dry Bulb Thermometer above computed mean Dew- -point. . 4.6 
Mita 
Mean Elastic force of Vapour for the month, ... a »» 0.949 
Troy grain. 
Mean Weight of Vapour for the month : oe LOMS 
Additional Weight of Vapour required for complete saturation, ei ed eto 
Mean degree of humidity for the month, complete saturation being unity 0.86 
Inches. 
Rained 27 days,—Max. fall of rain during 24 hours aah wo, OGL 
Total amount of rain during the month, .. 11.48 
Total amount of rain indicated by the Gauge attached to the anemo- 
meter during the month. _ . OSes 
Prevailing direction of the Wind, 8.8. E.E.S.E.&S. ‘by KE. 
