Meteorology. 157 
Meteorological Olservations kept at Walthamstow, Essex, from 
July \5. to August lo; 1817. 
[Usually between the Hours of Seven and Nine A.M. andthe Thermometer 
(a second time) between One and Two P.M. ] 
Date. Therm. Barom. Wind. 
July 
15 
16 
V7 
18 
i9 
20 
21 
22 
23 - 
24 
25 
26 
27 
28 
29 
52 
64 
51 
62 
53 
62 
53 
68 
54 
68 
59 
69 
58 
70 
61 
68 
59 
68 
29°32 
29-65 
29-87 
29-87 
99-98 
30-00 
29:88 
29°77 
29°78 
30:00 
30°06 
29:99 
29-76 
29°77 
30°00 
\ . 
SE—NW—N.NW.—Very rainy; very black 
nimbus 8 A.M.; sun and great showers all 
day ;. stormy; showery. 
N—NW.—Sunshine, cirrus and windy; fine 
day; clear and cirrostratus. 
NW.—Clear, cirrus, and cirrostratus; fine 
day; rain and wind, 
NW.—Gray and calm; 11 P.M.; wind and 
cirrus; fine day; cirrostratus and clear. 
NW.— Clear, clouds, and wind; fine day; 
moon- and star-light. 
NW—SW.— Clear and cirrus; fine day; rain 
after 6 P.M. 
SW —S.—Clouds and wind; fine day; at 
8 P.M. a mackerel cérrostratus; clear night. 
Moen frst quarter. 
SW—S—SW.—Rain and hazy; fine day; sun 
and wind; clear, and carrostratus. 
NW—N—NW.— Gray; showers and sun; 
great shower at 3 P.M.; clear and cirro- 
stratus”. é 
N—SE—SW.—Sun, and cirrocumulus ; fine 
day; clear, and cirrostratus; the moon ina 
corona. 
S—SW.—Gray; slight rain; wind, clouds and 
some sun; clear; cirrostratus. 
S.—Gray; slight showers; rainy; clouds and 
wind, 
SW.—Clear and cumuli; 10 A.M. thunder 
and rain; stormy showers and sun between 
them; clear, and cérrostratus. 
SW.—Clear, clouds, sun, and wind; sunshine; 
after 5 P.M. storms of rain; star-hght. 
Full moon. 
W—SW-S by E.—Cumuli; clear, sun and 
wind; fine day; star-light. 
* July 23d, a man and a dog were killed by lightning at Sevenoaks in 
Kent; and the steeple of Sunchurch burnt at the same time, 
July 
