ABSTRACT of the METEOROLOGICAL JOURNAL kept on board His Majesty’s Ship Hecla, at Sea, 
during the Month of August, 1819. 
Day 
Temperature of Air 
in shade. 
Sea Water at the 
surface. 
Barometer. 
Prevailing Winds. 
Prevailing Weather. 
Maxi- 
mum. 
Mini- 
mum. 
Mean. 
Tempe- 
rature. 
Specific 
Gravity, 
Tempera- 
ture when 
weighed. 
Maxi. 
mum. 
Mini- 
mum. 
Mean. 
1 
+ 
o 
36 
+ 
o 
33.5 
+ 
34.50 
+ 
o 
32.6 
1.0245 
55.5 
inches. 
29.60 
inches. 
29.51 
inches. 
29.540 
West 
Fresh breezes and hazy. 
2 
41 
33 
37.00 
34.2 
1.0255 
52 
29.73 
29.59 
29.660 
(N.E.bE.roundby ? 
t South to West i 
From fresh breezes to calms. Fine weather 
3 
38 
33 
;;35..58 
33.2 
1.0247 
55 
29.70 
29.50 
29.632 
f A.M. S.W.bW. > 
i P.M. East. 5 
Moderate breezes and hazy. 
4 
37.5 
33.5 
35.29 
32.8 
1.0248 
55 
29.51 
29.45 
29.481 
East 
Strong breezes and hazy. 
5 
35 
33.5 
34.25 
31.7 
29.51 
29.48 
29.496 
N.W. 
Light airs and cloudy, with snow. 
6 
35 
33 
33.83 
31.8 
1.0232 
59 
29.56 
29.51 
29.530 
North 
Light breezes and cloudy. 
7 
36 
31 
33.83 
31.6 
1.0248 
53 
29.60 
29.53 
29.562 
North 
Moderate breezes and cloudy. 
8 
35 
30 
32.62 
31.5 
1.0256 
38 
29.65 
29.59 
29.622 
N.W. 
Light breezes and cloudy. 
9 
39.5 
30.5 
33.92 
30.9 
1.0255 
56 
29.67 
29.62 
29.650 
N.W.bW. to S.S.W. 
Ditto. 
10 
36 
31 
33.00 
31.2 
1.0246 
56 
29.55 
29.52 
29.540 
S.bW. 
Moderate breezes and hazy, with rain and snow. 
11 
35 
33 
33.42 
31.0 
1.0244 
56 
29.66 
29.49 
29.567 
S.bW. 
Moderate and foggy, with continued rain. 
12 
35 
30 
32.58 
31.4 
1.0240 
55 
29.85 
29.80 
29.820 
N.bE. 
Moderate and foggy, with rain at intervals. 
13 
40 
30 
36.88 
32.2 
1.0237 
54 
29.86 
29.72 
29.810 
s.w. 
Light airs and fine clear weather. 
14 
42 
34 
36.75 
32.7 
1.0239 
55 
29.76 
29.61 
29.717 
N.N.W. to S.S.W. 
Ditto ditto. 
15 
39 
32 
35.21 
33.1 
1.0236 
55 
29.63 
29.61 
29.620 
S. Westerly 
Ditto ditto. 
16 
36 
33 
34.00 
32.8 
1.0212 
55 
29.68 
29.61 
29.642 
5S.S.E. round by? 
1 S. toW.N.W. S 
Light airs and hazy ; calm at times. 
IT 
35 
32 
33.42 
32.6 
1.0242 
55 
29.66 
29.63 
29.652 
S.W. 
Light airs and foggy weather. 
18 
36 
32.5 
33.67 
32.5 
1.0236 
55 
29.64 
29.60 
29.625 
C A.M. S.W.bW. ? 
i P.M. N.E.bE. 5 
Light breezes and cloudy. 
19 
33 
32 
32.83 
32.8 
1.0233 
57 
29.55 
29.53 
29.542 
E.bN. 
Strong breezes & hazy, with rain, hail, & sleet. 
20 
36 
33 
34.86 
32.6 
1.0233 
57 
29.63 
29.57 
29.610 
E.bN. 
Light breezes and hazy weather. 
21 
36 
33 
34.79 
32.5 
1.018S 
58 
29.66 
29.62 
29.650 
Round the Compass 
Ditto. 
22 
38 
33 
35.62 
33.2 
1.0235 
54 
29.76 
29.67 
29.729 
Ditto 
Light variable airs — ^A.M. hazy, P.M. clear. 
23 
36 
32 
33.75 
31.5 
1.0247 
54 
29.76 
29.66 
29.712 
North 
Moderate breezes and cloudy. 
24 
30 
28 
29.50 
30.1 
1.0246 
54 
29.66 
29.61 
29.634 
N.N.W. 
Fresh breezes and cloudy. 
25 
32 
30 
30.54 
30.2 
.... 
29.87 
29.64 
29.757 
N.W. 
Ditto. 
26 
35 
30 
31.92 
30.4 
30.06 
29.95 
30.012 
N.W.bW. 
Ditto. 
27 
34 
30.5 
32.58 
:30.9 
29.96 
29.80 
29.900 
S.S.W. 
Light breezes and fine clear weather. 
28 
34 
30 
32.00 
31.8 
29.70 
29.60 
29.657 
S.S.E. to N.E. 
Light breezes and foggy. 
29 
32 
31 
31.75 
31.7 
29.57 
29.40 
29.482 
S.E. 
Light airs and foggy. 
30 
34 
30 
32.08 
31.1 
29.36 
29.31 
29.332 
N.E.' 
Fresh breezes and foggy. 
31 
34 
31 
32.21 
31.4 
29.59 
29.39 
29.510 
f N.W. round by 7 
1 North to East j 
Light airs, with sleet and snow. 
42 
28 
33.67 
31.93 
30.06 
29.31 
29.635 
