Meteorological Observations. 
xcv 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of March, 1862. 
Monthly Besults. 
Inches. 
Mean height of the Barometer for the month, .. .. 29 900 
Max. height of the Barometer occurred at 10 A. M. on the 14th, .. 30.115 
Min. height of the Barometer occurred at 5 p. m. on the 1st, .. 29.660 
'Extreme range of the Barometer during the month, .. .. 0.455 
Mean of the daily Max. Pressures, .. .. .. 29.980 
Ditto ditto Min. ditto, .. .. .. 29.832 
Mean daily range of the Barometer during the month, .. .. 0.148 
o 
Mean Dry Bulb Thermometer for the month, .. .. 78.4 
Max. Temperature occurred at 3 P. M. on the 22nd, .. .. 94.6 
Min. Temperature occurred at 6 a. m. & 8 p. m. on the 4th & 29th, .. 64.5 
Extreme range of the Temperature during the month, .. .. 30.1 
Mean of the daily Max. Temperature, .. .. .. 88.3 
Ditto ditto Min. ditto, .. .. .. 70.3 
Mean daily range of the Temperature during the month, .. 18.0 
o 
Mean Wet Bulb Thermometer for the month, .. .. 69.8 
Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer,.. 8.6 
Computed Mean Dew-point for the month, .. .. 6.55 
Mean Dry Bulb Thermometer above computed Mean Dew-point, .. 12.9 
Inches 
Mean Elastic force of Vapour for the month,.. .. .. 0.628 
Troy grains. 
Mean Weight of Vapour for the month, .. .. .. 6.80 
Additional Weight of Vapour required for complete saturation, .. 3.51 
Mean degree of humidity for the month, complete saturation being unity, 0.66 
Rained 3 days, Max. fall of rain during 24 hours, 
Total amount of rain during the month, 
Prevailing direction of the Wind, 
Inches. 
1.58 
1.69 
S. & N. & S.W. 
