ABSTRACT of the METEOROLOGICAL JOURNAL kept on board His Majesty’s Ship Hecla, 
during the Month of July, 1820. 
Temperature of Air 
in shade. 
Barometer. 
Day 
Prevailing Winds. 
Prevailing Weather. 
Maxi- 
mum. 
Mini- 
mum. 
Mean. 
Maxi- 
mum. 
Mini- 
mum. 
Mean. 
1 
o 
+ 44 
O 
+ 36 
+ 40.58 
inches. 
29.60 
inches. 
29.56 
inches. 
29.578 
North. 
Fresh breezes and cloudy. 
2 
45 
36 
40.50 
29.70 
29.62 
29.657 
N.N.E. 
Ditto ditto.' 
3 
53 
34 
43.83 
29.73 
29.71 
29.720 
North. 
Light breezes and cloudy. 
4 
45 
37 
39.83 
29.77 
29.73 
29.747 
North. 
Strong breezes— squalls occasionally. 
5 
52 
37 
44.33 
29.83 
29.75 
29.775 
North. 
Moderate and cloudy. 
6 
51 
43 
47.67 
29.83 
29.75 
29.787 
North. 
Fresh breezes and cloudy. j 
7 
55 
41 
47.42 
29.90 
29.83 
29.863 
North. 
Moderate and fine. 
8 
55 
43 
48.75 
29.90 
29.80 
29.882 
N.N.W. 
Ditto ditto. 
9 
49 
40 
43.58 
30.01 
29.77 
29.903 
South. 
FreshJjreezes — occasional rain. 
10 
48 
41 
45.67 
29.83 
29.70 
29.765 
South. 
Ditto ditto. 
11 
49 
43 
43.33 
29.90 
29 .SO 
29.845 
N.W. 
Moderate and cloudy. 
12 
49 
40 
43.75 
29.80 
29.78 
29.797 
W.N.W. 
Moderate with rain. 
13 
55 
40 
46.00 
29.82 
29.76 
29.790 
N. by W. to N.N.W. 
Ditto ditto. 
14 
56 
32 
48.25 
29.76 
29.66 
29.720 
f .S.W. 
From light to strong breezes. 
15 
47 
38 
43.00 
29.79 
29.68 
29.710 
South. 
Moderate and fine. 
16 
49 
36.5 
42.87 
29.76 
29.72 
29.753 
S.S.E. 
Light airs and fine clear weather. 
17 
60 
41 
51.08 
29.81 
29.75 
29.790 
North. 
Ditto ditto. 
18 
48 
34 
43.12 
29.84 
29.69 
29.788 
S.S.E. 
Light airs, and fine clear weather. 
19 
50 
36 
43.17 
29.75 
29.69 
29.723 
S.E. 
Light airs and hazy. 
20 
43 
38 
40.50 
29.70 
29.60 
29.623 
N.N.E. 
Light airs with rain. 
21 
45 
33 
40.33 
29.61 
29.60 
29.623 
N. byE. 
Fresh breezes and cloudy. 
22 
50 
37 
45.01 
29.69 
29.66 
29.675 
N. N. E. 
Ditto ditto. 
23 
43 
34 
39.17 
29.70 
29.67 
29.690 
North. 
Ditto ditto. 
24 
49 
36 
41.83 
29.71 
29.60 
29.678 
South. 
Moderate and fine. 
25 
50 
35.5 
43.58 
29.59 
29.31 
29.453 
E.by N. to S.W. 
Light breezes and fine. 
26 
42 
34 
36.92 
29.27 
29.13 
29.175 
W.N.W. 
Fresh breezes and cloudy — snow and rain. 
27 
37 
32.5 
34.67 
29.44 
29.26 
29.387 
W.N.W. 
Ditto ( • c. 
28 
42 
34 
37.29 
29.39 
29.30 
29.335 
Round compass. 
Light airs and cloudy. 
29 
38 
32 
34.58 
29.52 
29.34 
29.452 
S.W. 
Fresh breezes and cloudy : hail and snow. 
30 
42 
32 
37.25 
29.55 
29.52 
29.555 
S.S.W.toWest. 
Moderate and cloudy : hail and sleet. 
31 
40 
34.5 
36.96 
29.52 
29.44 
29.187 
C S.S.W. to ? 
1 W.N.W. S 
Fresh breezes and cloudy : snow and rain. 
+ 60 
+ 32 
+ 42.41 
30.01 
29.13 
29.668 
2 G 2 
