Meteorological Observations. xv 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
in the month of February, 1866. 
Monrtuty Resvuuts. 
Inches 
. Mean height of the Barometer for the month,.., wee vo §=62.9.956 
Max. height of the Barometer occurred at 10 a. M. on the 7th, ». 80.188 
Min. height of the Barometer occurred at 5 Pp. M. on the 28th, we §=629.736 
Hutreme Range of the Barometer during the month, Ses vee =: 0.402 
Mean of the daily Max. Pressures, ... 306 se ve. 380.034 
Ditto ditto Min. ditto ... Ae ae ws 29.894; 
Mewn daily range of the Barometer during the month,  ... ve 0.140 
co) 
Mean Dry Bulb Thermometer for the month, ... “00 “00 70.3 
Max. Temperature occurred at 3 Pp. M. on the 28th, 500 boo 91.4 
Min. Temperature occurred at 7 A. M. on the 14th, san bod 56.2 
Hatreme range of the Temperature during the month, 600 oo 35.2 
Mean of the daily Max. Temperature, 00 900 900 79.2 
Ditto ditto Min.  ditte, ... 1 Bs Ming 1 62°9 
Mean dwily range of the Temperature during ad month, fe 16.3 
Mean Wet Bulb Thermometer for the month, ... soo 500 64.0 
Mean Dry Bulb Thermometer above mean Wet Bulb Thermometer, ... 6.3 
Computed Mean Dew-point for the month, ... 000 006 59.0 
Mean Dry Bulb Thermometer «bove computed mean Dew- point, poo 11.3 
Inches 
Mean Elastic force of Vapour for the month, .., no »» 0.506 
Troy grains 
Mean Weight of Vapour for the month, 000 ee say 5.56 
Additional Weight of Vapour required for complete saturation, as 2.52 
Mean degree of humidity for the month, complete saturation being unity, 0.69 
Inches 
Rained 5 days, Max. fall of rain during 24 hours, 900 500 1.56 
Total amount of rain during the month, a ane a 3.74 
Total amount of rain indicated by the Gauge attached to the esa. 
meter during the month, Bot oni sis 500 3.34 
Prevailing direction of the Wind, .., une nn EH. &N. & W. 
