C >3 3 
826. 
ptem- 
ber. 
$ 1 
h 2 
3 3 
5 > 4 
J 5 
& 6 
it 7 
? 8 
h 9 
D 10 
D 11 
J 12 
5 »3 
it 14 
? IS 
f? 16 
•) i 7 
D 18 
» 19 
g 20 
Llf 21 
? 22 
if? 23 
D 24 
6 25 
j 26 
» z 7 
4 28 
? 29 
W? 30 
Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32 0 Fahr. | 29^867" 29**820 
OBSERVANDA. 
Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge 
above the mean level of the Sea (presumed about) 
The External Thermometer is 2 feet higher than the Barometer Cistern. 
Height of the Receiver of the Rain Gage above the Court of Somerset House 
The hours of observation are of Mean time — the day beginning at Midnight. 
The Thermometers are graduated by Fahrenheit’s scale. 
The Barometer is divided into inches and decimals. 
— 83 ft. 2$ in. 
= 95 ft - 
zz 79 ft. oin. 
9 o’Clock, A. M. 
Barom. 
Attached 
Thermo- 
meter, 
29.825 
29.720 
29.792 
29.958 
29.947 
29.905 
29. 1 66 
29.631 
29.771 
30.022 
30.213 
30-240 
30.089 
29.912 
30.226 
30.290 
30.007 
29 . 849 
29.903 
29 . 840 
30.054 
30-135 
30.055 
29.639 
29.802 
29.968 
30.156 
30. 146 
29.762 
65.2 
62.7 
65.8 
65 .2 
6 3 - 5 
58.0 
57.8 
57.0 
58.0 
59.1 
56.8 
56.5 
58.2 
59-4 
53 -o 
55-4 
56.8 
62.2 
6 4 - 3 
61.3 
59-9 
53 -o 
51.0 
Mean 
29.932 
Mean 
59.1 
3 o’Clock, P. M. 
Barom. 
Attached 
Thermo- 
meter, 
29.807 
29.701 
29.869 
29.942 
29.921 
29.237 
29.452 
29.635 
29.822 
30.064 
30.215 
30.197 
30.017 
29.929 
30.270 
30.213 
29.949 
29.782 
29.9OI 
29.843 
30.083 
30. 126 
29.641 
29.661 
29.808 
30.008 
30. 166 
30.047 
29.778 
Mean 
29.899 
69.5 
65.4 
67.8 
70.5 
64.5 
66.0 
58.7 
63.1 
61.3 
63.2 
62.5 
63.6 
64.5 
66.2 
61.8 
62.9 
65.0 
63.8 
66.5 
64.5 
63.6 
58.5 
Mean 
64.2 
Dew 
Point at 
9 A.M. 
in de- 
grees of 
Fahr. 
60 
63 
64 
64 
61 
56 
56 
55 
54 
5 1 
53 
54 
56 
58 
5 i 
54 
56 
62 
6 3 
61 
54 
5 1 
48 
60 
60 
61 
61 
59 
66 
Mean 
57.6 
External Thermometer. 
Rain, in 
inches, 
Read off 
at 9A.M. 
Direction 
Fahrenheit. 
Self-registeriDg. 
of the 
Wind at 
9 A. M. 
Remarks, 
9 A. M. 
3 P.M. 
Lowest. 
Highest. 
63.0 
67.9 
60.2 
69.5 
ESE 
62.0 
62.0 
58.7 
64.8 
0.01 1 
N var. 
Gloomy — unsteady wind— showery. 
63.0 
65.5 
6l . 1 
67.0 
NE 
Cloudy. 
64.8 
70.0 
59-3 
72.3 
0.010 
ESE 
Cloudy — showery. 
62.8 
60.5 
58.5 
64.8 
0.005 
NNW 
Overcast and foggy. 
56.8 
64.0 
55.0 
65.6 
NE 
Lowering — strong wind. Heavy rain. 
55.0 
56.0 
52.9 
57-5 
0. 198 
WNW 
Gloomy— slight fog. Continued rain. 
56.5 
64.8 
50.0 
66.6 
sw 
Overcast and cloudy. Heavy rain. 
54.6 
62.0 
52.9 
63.0 
0.008 
ESE 
A. M. stroug fog. P. M. fine— cloudy. 
57-3 
62.9 
50.0 
63-9 
O.04I 
SW 
Fine and clear— cloudy. 
55-3 
62.0 
49.9 
63.8 
WNW 
Fine — cloudy. 
55-5 
63.5 
49.8 
65 .0 
SW 
( A. M. cloudless. P.M. overcast— slight 
l fog- 
57-9 
64.0 
52.0 
65.0 
SSW 
Clear and cloudless. 
59.0 
65.4 
52.7 
67.7 
0.012 
SW 
( A. M. clear and cloudless. P.M. cloudy. 
1 Showery. 
53 -o 
6l .2 
47.2 
62.4 
N 
Fine— light clouds. 
56.0 
62.1 
48.0 
66.9 
E 
( Very fine— clear and cloudless. Heavy 
1 fog in the morning. 
57.2 
66.2 
50.3 
68.0 
ENE 
Fine — light clouds. 
61.5 
64.0 
NE 
i Overcast and gloomy— brisk wind — 
61.5 
57.2 
O.I32 
( showery. 
63.0 
67.0 
61 .0 
68.0 
SSW 
Fine and clear — cloudy. 
59-7 
63.0 
59.0 
64.0 
WNW var. 
Overcast. Dense fog in the morning. 
57.0 
60.8 
51.8 
63.2 
NE 
Fine — cloudy. 
52.5 
58.9 
46.2 
58.5 
ESE 
Clear and cloudless — brisk wind. 
51.6 
43-8 
E 
Fine and cloudless^ 
63.0 
53 -o 
63.0 
N. 
60.0 
61 .0 
59.0 
64.0 
S 
Showery. N. 
61 .0 
63 0 
57.0 
66.0 
SW 
Showery. N. 
62.0 
64.0 
60.0 
67.0 
W 
Fine. N. 
62.0 
64.0 
57.0 
67.0 
SW 
Fine. N. 
59.0 
63.0 
55.0 
67.0 
SW 
Fine. N. 
64.0 
65.0 
60.0 
67.0 
sw 
Showery. N. 
Mean 
Mean 
Mean 
Mean 
Sum 
58.7 
63.2 
54-3 
65-3 
0.417 
*-''M : n : ,:V 
