Abstract of the Results of the Hourly Meteorological Observations taken at the Surveyor General's Office, Calcutta,

in the month of June, 1861.

Hourly Means, &c. of the Observations and of the Hygrometrical elements dependent thereon.—(Continued.)

All the Hygrometrical elements are computed by the Greenwich Constants.

Abstract of the Results of the Hourly Meteorological Observation, taken at the Surveyor General's Office, Calcutta,

Ni Cirri, i Cirro strati, ni Cumuli, i Cumulo strati, i Nimbi, —i Strati, hi Cirro cumuli.

Abstract of the Results of the Hourly Meteorological Observations

taken at the Surveyor General's Office, Calcutta,

Abstract of the Results of the Hourly Meteorological Observations taken at the Surveyor General's Office, Calcutta,

in the month of June, 1861.

MONTHLY RESULTS.

Mean height of the Barometer for the month,

Inches

29.572

Max. height of the Barometer occurred at 9 A. M. on the 19th,

29.779

Min. height of the Barometer occurred at 2 P. M. on the 13th,

29.290

Mean daily range of the Barometer during the month,

29.506

Mean daily range of the Temperature during the month,
Mean Wet Bulb Thermometer for the month,..

8.6

79.4

Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer,
Computed Mean Dew-point for the month,

3.9

77.4

Mean Dry Bulb Thermometer above computed Mean Dew-point,

5.9

Inches

Mean Elastic force of Vapour for the month,

0.922

Troy grains

9.89

2.04

0.83

Mean Weight of Vapour for the month,

Additional Weight of Vapour required for complete saturation,
Mean degree of humidity for the month, complete saturation being unity,

Abstract of the Results of the Hourly Meteorological Observations taken at the Surveyor General's Office, Calcutta,

in the month of June, 1861.

MONTHLY RESULTS.

Table showing the number of days on which at a given hour any particular wind blew, together with the number of days on which at the same hour, when any particular wind was blowing, it rained.