C lO 
1826. 
July. 
9 o’clock, A. M. 
Barora. 
Attached 
Thermo¬ 
meter. 
3 o’clock, P. M. 
Barom. 
Attached 
Thermo¬ 
meter. 
Dew 
Point at 
9 A.M. 
in de¬ 
grees of 
Fahr. 
External Thermometer. 
Fahrenheit. 
9 A.M. 3 P.M, 
Self-registering. 
Rain, in 
inches, 
Read off 
at 9 A,M, 
Lowest. Highest, 
Direction 
of the 
Wind at 
9 A. M. 
Remarks. 
h 
O 
D 
S 
X 
? 
1^? 
O 9 
D »o 
$ II 
12 
% *3 
? 14 
T? 15 
o 16 
D 17 
S 18 
O 2 *9 
X 20 
? 21 
1? 22 
O 23 
P 24 
S 25 
5 26 
% 27 
¥ 28 
h 29 
O 30 
P 31 
30.212 
30.297 
30.299 
30.Ill 
29.944 
29.942 
29.778 
29.655 
29.647 
29.764 
29.842 
29.843 
29.672 
29*739 
29.849 
29.79b 
29.975 
29.951 
29.921 
29.990 
29.606 
29.802 
29.944 
30*035 
30.136 
30*301 
30.332 
30.251 
30.124 
30.122 
30.031 
72.0 
76.2 
74*0 
77*0 
80.0 
67.5 
69.5 
68.5 
61.0 
61.0 
64 ;o 
66.5 
66.0 
69.8 
70.2 
73*0 
76.5 
30.196 
30.239 
30.241 
30.025 
29.932 
29,903 
29.712 
29.634 
29.611 
29*757 
29.866 
29.715 
29.605 
29.764 
29.819 
29*729 
29.929 
29.876 
29.938 
29.976 
29.635 
29.901 
30.029 
30.105 
30.136 
30.322 
30-317 
30.212 
30.103 
30.041 
30.004 
75*0 
75*0 
76.8 
77-5 
78.5 
74*5 
69.0 
67.5 
68.8 
62.0 
68.0 
70.5 
70.0 
67.0 
70.0 
72.0 
73*0 
78.0 
64 
56 
65 
62 
65 
64 
64 
63 
66 
64 
64 
65. 
68 
67 
65 
63 
57 
64 
55 
55 
57 
58 
59 
58 
57 
56 
54 
53 
56 
58 
59 
69.5 
75*5 
74*0 
77*0 
78.5 
67.0 
75-5 
76.0 
74*0 
71.0 
70.0 
67.0 
68.5 
68.0 
68.0 
63.0 
66.0 
67.0 
65.0 
69.0 
64.8 
68.0 
56.5 
60.0 
62.0 
66.0 
63*5 
65.0 
69.0 
72.0 
75*0 
75*5 
79*0 
80.0 
79*0 
80.0 
78.5 
78.0 
77*0 
78.0 
76.0 
73*0 
72.0 
68.0 
73*0 
72.0 
68.0 
73*0 
74*0 
71.0 
67.5 
65.0 
65.0 
57*5 
68.0 
72.0 
70.1 
70.5 
71*5 
75*0 
76.0 
80.0 
67.4 
62.4 
64.8 
62.8 
67.5 
63.8 
76.8 
81.2 
83.0 
81.4 
82.5 
81.2 
0.031 
61 .0 
54*5 
55*8 
55*5 
55*4 
56.0 
52.3 
57*0 
57*8 
61.0 
67.5 
80.5 
69.2 
66.8 
61.0 
69.5 
73*8 
72.0 
72.4 
73*5 
75*8 
79.1 
82.4 
0.087 
o. 100 
0.045 
0.150 
0.042 
1.300 
0.604 
wsw 
NW 
S var. 
E 
SW 
S 
SSW 
SW 
SW 
W 
w 
SW 
SW 
w 
w 
w 
W byN 
WNW 
W by N 
NW 
SW 
E 
N 
N 
N 
ESE 
N 
E 
SE 
W 
SE 
Overcast and cloudy. 
Fine and clear—a few broken clouds. 
Fine—cloudy—brisk wind. | 
Fine—cloudy. 
Fine—nearly cloudless—strong wind. 
Fine—cloudy. 
Fine. N. 
Overcast —showery. N. 
Overcast. N. 
Fine—cloudy. N. 
Cloudy. Thunder at 11 A. M. N. 
Cloudy. N. 
Cloudy—showery. N. 
Fine. N. 
Fine. N. 
Fine—cloudy—showery. N. 
Fine. N. 
Fine. N. 
Fine. N. 
Very cloudy—brisk wind. 
^ Sky clear—dark clouds and strong wind 
—showery. 
Cloudy—brisk wind, 
y Overcast and gloomy—strong wind— 
^ showeiy. 
Fine—light clouds—strong wind. 
Clear and cloudless. 
Fine—light clonds—brisk wind. 
Fine—light clouds. 
Fine—nearly cloudless. 
Fine—nearly cloudless. 
Cloudless. 
^ At 10 A.M. thunder and lightning, with 
I a few drops of rain, P. M. cloudless. 
Mean 
29.965 
Mean 
70.1 
Mean 
29.944 
Mean 
71.8 
Mean 
60.7 
Mean 
68.7 
Mean 
73*0 
Mean 
60.1 
Mean 
75*7 
Sum 
2*359 
Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32" Fahr. 
3 P.M.'I 
29.845/ 
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. 
— 79 ft. 0 in. 
