C I'3 ] 
1826. 
9 o’clock, A. M. 
3 o’clock, P. M. 
■'ir'"' 
Dew 
Poiut at 
External Thermometer. 
Rain, in 
inches. 
Read off 
at 9A.M. 
Direction 
Septem- 
Barom. 
Attached 
Thermo¬ 
meter. 
Barom. 
Attached 
Thermo¬ 
meter. 
9 A.M. 
in de¬ 
grees of 
Fahr. 
Fahrenheit. 
Self-registering. 
ot the 
Wind at 
9 A. M. 
Remarks. 
9 A. M. 
3 P. M. 
Lowest. 
Highest. 
? 
I 
29.825 
65.2 
29.807 
69.5 
60 
63.0 
67-9 
60.2 
69-5 
ESE 
• h 
2 
29.720 
62.7 
29.701 
65.4 
63 
62.0 
62.0 
58.7 
64.8 
O.OI I 
N var. 
Gloomy — unsteady wind— showery. 
0 
3 
29.792 
65.8 
29.869 
67.8 
64 
63.0 
65-5 
61.1 
67.0 
NE 
Cloudy. 
» 
4 
29.958 
65.2 
29.942 
70.5 
64 
64.8 
70.0 
59-3 
72.3 
0.010 
ESE 
Cloudy—showery. 
$ 
5 
29.947 
63-5 
29.921 
64.5 
61 
62.8 
60.5 
58.5 
64.8 
0 
0 
d 
NNW 
Overcast and fogg^'. 
6 
29.905 
58.0 
29.237 
66.0 
56 
56.8 
64.0 
55.0 
65.6 
NE 
Lowering—strong wind. Heavy rain. 
V. 
7 
29.166 
57-8 
29.452 
58.7 
56 
55-0 
56.0 
52.9 
57-5 
0 
so 
00 
WNW 
Gloomy—slight fog. Continued rain. 
? 
8 
29.631 
57-0 
29.635 
63.1 
55 
56.5 
64.8 
50.0 
66.6 
sw 
Overcast and cloudy. Heavy rain. 
1? 
9 
29.771 
58.0 
29.822 
61.3 
54 
54-6 
62.0 
52.9 
63.0 
0.008 
ESE 
A. M. strong fog. P. M. fine—cloudy. 
0 
10 
30.022 
59-1 
30.064 
63.2 
51 
57-3 
62.9 
50.0 
63-9 
0.041 
SW 
Fine and clear—cloudy. - 
» 
11 
30.213 
56.8 
30.215 
62.5 
53 
55-3 
62.0 
49.9 
63.8 
WNW 
Fine—cloudy. 
12 
30.240 
56.5 
30-197 
63.6 
54 
55-5 
63.5 
49.8 
65.0 
SW 
1 A. M. cloudless. P.M. overcast—slight 
5 
13 
30.089 
58.2 
30.017 
64.5 
56 
57-9 
64.0 
52.0 
65.0 
SSW 
Clear and cloudless. 
n 
14 
29.912 
59-4 
29.929 
66.2 
58 
59-0 
65-4 
52.7 
67-7 
0.012 
SW 
( A. M. clear and cloudless. P.M. cloudy. 
1 Showery. 
? 
IS 
30.226 
53-0 
30-270 
61.8 
51 
53-0 
61.2 
47-2 
62.4 
N 
Fine—light clouds. 
Ob 
16 
30.290 
55-4 
30.213 
62.9 
54 
56.0 
62.1 
48.0 
66.9 
E 
t Very fine-clear and cloudless. Heavy 
1 fog in the morning. 
0 
17 
30.007 
56.8 
29.949 
6<;.o 
56 
57-2 
66.2 
50-3 
68.0 
ENE 
Fine —light clouds. 
5 
18 
29.849 
62.2 
29.782 
63.8 
62 
61.5 
61.5 
57-2 
64.0 
0.132 
NE 
( Overcast and gloomy—brisk wind— 
( showery. 
s 
>9 
29.903 
64-3 
29.901 
66.5 
63 
63.0 
67.0 
61.0 
68.0 
SSW 
Fine and clear—cloudy. 
20 
29.840 
61.3 
29.843 
64.5 
61 
59-7 
63.0 
59-0 
64.0 
WNW var. 
Overcast. Dense fog in the morning. 
% 
21 
30.054 
59-9 
30.083 
63.6 
54 
57-0 
60.8 
51.8 
63.2 
NE 
Fine—cloudy. 
? 
22 
30-135 
53-0 
30.126 
58.5 
5 » 
52.5 
58.9 
46.2 
58-S 
ESE 
Clear and cloudless—brisk wind. 
b 
23 
30-055 
51.0 
— 
— 
48 
51.6 
— 
43-8 
— 
E 
Fine and cloudless.^ 
0 
24 
— 
— 
29.641 
— 
— 
— 
63.0 
53-0 
63.0 
N. 
D 
25 
29.639 
—— 
29.661 
— 
60 
60.0 
61.0 
59-0 
64.0 
S 
Showery. N. 
26 
29.802 
— 
29.808 
—— 
60 
61.0 
63 0 
57-0 
66.0 
SW 
Showery. N. 
27 
29.968 
— 
30.008 
— 
61 
62.0 
64.0 
60.0 
67.0 
w 
Fine. N. 
n 
28 
30.156 
30.166 
61 
62.0 
64.0 
57-0 
67.0 
sw 
Fine. N. 
? 
29 
30.1^6 
— 
30.047 
59 
59-0 
63.0 
55-0 
67.0 
sw 
Fine. N. 
b 
30 
29.762 
29.778 
66 
64.0 
65.0 
60.0 
67.0 
sw 
Showery. N. 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Sum 
29.932 
59-1 
29.899 
64.2 
57-6 
58.7 
63.2 
54-3 
65-3 
0.417 
Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32® Fahr. | 29^8^7 29* 8^0 
OBSERVANDA. 
Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge. r= 83 ft. 2^ in. 
. above the mean level of the Sea (presumed about) = 95 ft. 
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.. =: 79 ft. o In. 
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. 
