Date.

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

in the month of September, 1863.

Daily Means, &c. of the Observations and of the Hygrometrical elements

All the Hygrometrical elements are computed by the Greenwich Constants. From the 1st January, 1863, the Greenwich New Factors have been used for computing Dew-points.

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

in the month of September, 1863.

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

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

Hour.

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

in the month of September, 1863.

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

Mid

night.

All the Hygrometrical elements are computed by the Greenwich Constants. From the 1st January, 1863, the Greenwich New Factors have been used for computing Dew-points.

| Date.

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

S.

1

Scatd.

0.19 S. & S. E.

i till 4 A. M.; cloudy till 6

P. M.; cloudless afterwards.

4 Cloudy till 5 A. M.; Scatd. i till 10 A. M.; cloudy till 4 P. M. Scatd. i afterwards; also raining between Noon & 1 P. M.

3 127.8 0.10 S. & S. E. & S. W. 2 Scatd. Li & ^i till 2 P. M. cloudy after

7 130.0 0.46

Sunday.
S. & S. E.

13

wards; also raining between 4 & 5

A. M.

Cloudy till 2 A. M. Scatd. i & i till 2 P. M.; Scatd. clouds afterwards. Scatd. clouds till 8 A. M.; cloudy till 3 P. M.; cloudless afterwards; also raining between 1 and 2 P. M. and at 3 P. M.

Cloudless till 7 A. M. Scatd. \i & ni
till 2 P. M.,; cloudy afterwards; also
occasionlly raining from 2 to 7 P. M.
2 Cloudless till 5 A. M. Scatd. i and
i till 6 P. M. cloudless afterwards.
2 Cloudless till 6 A. M. Scatd. i & i
till 5 P. M. cloudless afterwards; also
raining at 2 & 3 P. M.

23 Cloudless till 5 A. M. cloudy till 6 P. M.
cloudless afterwards; also very slight-
ly drizzling between noon & 1 P. M.
2 Cloudless till 2 A. M. cloudy after-
wards; also drizzling at 6 A. M.
Cloudy; also constantly drizzling.

2

ls 135.0 0.55 S. E. & S. W. & Calm 13

Cloudy till 4 P. M.; cloudless after-
wards; also drizzling from midnight
to 4 A. M.

Cloudy till 5 P. M. cloudless afterwards.
Cloudy; also raining at 5 A. M. and be-

tween 9 & 10 A. M.; and thundering and lightning between 10 & 11 P. M. Cloudy; also raining at 3 A. M. & from 4 P. M. to 6 P. M.

Cloudy till 6 P. M.; cloudless afterwards; also drizzling between 11 & noon, at 2 P. M. & between 3 & 4 P. M.

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

\i Cirri, i Cirro strati, i Cumuli, i Cumulo strati, i Nimbi,—i Strati, i Cirro cumuli.