75 
Meteorology. 
Meteorological Journal kept at Walthamstow, Essex, from 
December 15, 1818 to January 15, 1819. 
[Usually between the Hours of Seven and Nine A.M. and the Thermometer 
_ (a second time) between Twelve and Two P.M. ] 
Date. Therm. Barom. Wind. 
30°10 
29°91 
30:10 
29:80 
30:10 
30°05 
29°90 
30°40 
30°40 
30°20 
30°10 
29-80 
30:00 
50°39 
30°50 
30°40 
December 
15 36 
41 
16 28 
43 
Sr a! 
27 
18 21 
35 
190 oy 
35 
20 41 
47 
21 47 
47 
22 26 
31 
23 | “23 
30 
24 29 
30 
25° 26 
33 
26 34 
34 
27 «(34 
4] 
28 36 
40 
29 30 
37 
30 24 
34 
SE—Moon-shine and cumuli ; sun, clouds. 
and wind; very fine cold day. Clear moon 
and star-light. 
NW.—Clear and cumuli; white frost at 
7 A.M.; at 9 A.M. hazy; fine day; clear 
night. | 
SW.—White frost and hazy ; fine sunny day; 
star-light at 6 P.M.; dark and foggy at 10 
P.M 
SE.—NW.—Clear and clouds at 1 A.M.; fog 
before 9; sun through fog; 2 P.M. rain; 
dark and windy. 
SE.—SE.—Clear at 7 A.M.; fog at 9; a fine 
day, sun and white frost ; dark night. 
SE.—Cloudy morn; damp day but some gleams 
of sun; dark night. . Moon last quarter. 
SW.—.WNW.—Clear and cumul? ; fine day; 
clear and cirrostratus ; clear night. 
W.—5.—Hazy morn; very foggy; sun through 
fog; clear, bright star-light early; dark and 
foggy afterwards, 
SE.—NW.—NE.— Very clear morn; some 
cirrostratus ; very fine frosty day ; beautiful 
icicles on the trees; clear star-light. 
NE,— White frost and hazy ; sun through fog ; 
very foggy night. 
NE.—Foggy morn and foggy day; rapidthaw; 
dark and windy. 
SE.—Grey morn ; grey cold day ; dark night. 
SE.—Clear and cumuli; at 10 A.M. perfectly 
clear sky; very fine day; night dark and 
windy. New moon. 
N.—Clear and cumuli ; grey day; at 10 P.M. 
dark and windy; at [1 star-light. 
N. —Clear and cirrostratus ; fine day ; clear 
night. 
SN.—NW.—Clear, and white frost; hazy 
day; dark night. 
December 
ee 
in 
