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

in the month of July, 1861.

Latitude 22° 33' 1" North. Longitude 88° 20′ 34′′ East.

Feet.

Height of the Cistern of the Standard Barometer above the Sea-level, 18.11
Daily Means, &c. of the Observations and of the Hygrometrical elements

The Mean height of the Barometer, as likewise the Mean Dry and Wet Bulb Thermometers are derived from the twenty-four hourly Observations made during the day.

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

in the month of July, 1861.

Daily 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 Observations taken at the Surveyor General's Office, Calcutta,

in the month of July, 1861.

Hourly Means, &c. of the Observations and of the Hygrometrical elements dependent thereon.

The Mean height of the Barometer, as likewise the Mean Dry and Wet Bulb Thermometers are derived from the Observations made at the several hours during the month.

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

in the month of July, 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 Observations taken at the Surveyor General's Office, Calcutta,

S. & S. W.

S.

S. & S. E.

0.10 S.

0.12 S.

12

13

Cloudy; also drizzling between Noon &

2 P. M.

Cloudy & raining after intervals.
Cloudy & constantly raining.

Cloudy & drizzling between 9 A. M. &
Noon & between 10 & 11 P. M.
Cloudy & constantly drizzling before
sunrise.

Cloudy.

Scatd. clouds.

Cloudless till 5 A. M. cloudy till 8 P. M.
cloudless afterwards; also slightly
drizzling between 9 & 10 A. M.
Scatd. clouds till 2 P. M. cloudy till 7
P. M. cloudless afterwards; also slight-
ly drizzling at 4 P. M.

Cloudless till 4 A. M. Scatd. clouds af-
terwards; also drizzling at 4 P. M.

0.56 E. & S. E. & N. E. Cloudy; also raining between 1 & 7

P. M.

Scatd. clouds till 9 P. M. cloudless afterwards; also drizzling between 11 A. M. & 1 P. M.

Cloudless till 3 A. M. cloudy afterwards;
also occasionally drizzling between
Noon & 7 P. M.

Cloudless till 4 A. M. cloudy afterwards;
also occasionally drizzling.
Cloudy; also occasionally drizzling.
Cloudy; also raining after intervals.
Cloudy; also constantly raining be-
tween Midnight & Noon.
Cloudy; also drizzling at 6 P. M.

Cloudy; with rain beetween 6 & 7 A. M.
Scatd. i till 8 A. M. Scatd. clouds af-
terwards; also drizzling at Noon & 2

P. M.

Cloudy; also slightly drizzling at 1 &

11 A. M.

Cloudy; also slightly drizzling at 6

P. M.