Meteorological Observations. Ixxxix 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
in the month of November 1871. 
Monrutry Resvtrts. 
Mean height of the Barometer for the month... 
Max. height of the Barometer occurred at 9 a. a. on the 20th. 
Inches. 
«. 29.952 
... 30.072 
Min. height of the Barometer occurred at 4 p.m. on the 12th. ... 29.808 
Extreme range of the Barometer during the month 0.264 
Mean of thie daily Max. Pressures... sai aes .. 30,022 
Ditto ditto Min. ditto as a pe .. 29.894 
Mean daily range of the Barometer during the month ,., ». 0.128 
0 
Mean Dry Bulb Thermometer for the month .., ose « 75.8 
Max. Temperature occurred at 2 y. mM. on the 2nd +e ice, 9 OE 
Min. Temperature occurred at 6 A. M, on the 28th. oe O20 
Extreme range of the Temperature during the month ove . 249 
Mean of the daily Max. Temperature ... Lo tae 
Ditto ditto Min. ditto, ... = tae -. 69.6 
Mean daily range of the Temperature during the month... E 13.9 
Mean Wet Bulb Thermometer for the month ... diy va - OBE 
Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer 6.1 
Computed Mean Dew-point for the month + oe oes» COG 
Mean Dry Bulb Thermometer above computed mean Dew-point ... 10.4 
Inches. 
Mean Elastic force of Vapour for the month ... ova .. 0.626 
Troy grain. 
Mean Weight of Vapour for the month a ve 6.81 
Additional Weight of Vapour required for complete saturation 2.73 
Mean degree of humidity for the month, complete saturation being unity 0.71 
o 
Mean Max. Solar radiation Thermometer for the month ... 140.4 
Inches. 
Rained no days,—Max. fall of rain during 24hours_... oe =Nil 
Total amount of rain during the month a is Nil 
Total amount of rain indicated by the Gauge* attached to the anemo- +o 
ANI 
meter during the month __... eas 
Prevailing direction of the Wind... .. 
* Height 70 feet 10 inches above ground. 
"We. by S, N. W. & W. 
