XXX Meteorological Observations. 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of November, 1863. 
Monruuiy Resurrs. 
Mean height of the Barometer for the month, .. oe ae 
Max. height of the Barometer occurred at 10 A. M. on the 23rd, ee 
Min. height of the Barometer occurred at 4 P. M. on the 5th, ee 
Extreme range of the Barometer during the month, ee es 
Mean of the Daily Max. Pressures, .. oe ee ee 
Ditto ditto Min. ditto, .. on 50 on 
Mean daily range of the Barometer during the month, .. es 
Mean Dry Bulb Thermometer for the month, .. co ee 
Max. Temperature occurred at 3 P. M. on the 3rd, ee es 
Min. Temperature occurred at 6 a. M. on the 30th, *o os 
Extreme range of the Temperature during the month, ee ee 
Mean of the daily Max. Temperature, ee ee oe 
Ditto ditto Min. ditto, .. 50 aie 
Mean daily range of the Temperature during she month, .. ee 
Mean Wet Bulb Thermometer for the month, .. ae 
Mean Dry Bulb Thermometer above Mean Wet Bulb Tie ee 
Computed Mean Dew-point for the month, .. ee ee 
Mean Dry Bulb Thermometer above computed Mean Dew-point, as 
Mean Elastic force of Vapour for the month, .. ee ee 
Inches 
29.948 
30.122 
29.770 
0.352 
30.018 
29.893 
0.125 
Co) 
75.2 
86.3 
61.6 
24.7 
82.8 
68.9 
13.9 
68.9 
6.3 
64.5 
10.7 
Inches 
0.607 
Troy grains 
Mean Weight of Vapour for the month, ee ee ac 
Additional Weight of Vapour required for complete saturation, Me 
Mean degree of humidity for the month, complete saturation being unity, 
Rained 3 days, Max. fall of rain during 24 hours, se ee 
Total amount of rain during the month, ae ne se 
Prevailing direction of the Wind, .. co eo ee 
6.61 
2.76 
0.71 
Inches 
1.04 
1.26 
N. 
