A Note on the Land and Sea Breezes of South Africa. 299 
TABLE 5. 
Diurnal Variation of Wind Frequency in Hours. 
I. 
III. 
V. 
VII. 
IX. 
XI. 
XIII. 
XV. 
XVII. 
XIX. 
XXI. 
XXIII. 
N 
23 
22 
25 
28 
18 
22 
19 
15 
15 
14 
15 
29 
N.N.E 
14 
6 
4 
7 
2 
5 
5 
3 
19 
36 
47 
33 
N.E 
4 
7 
4 
2 
9 
27 
52 
66 
51 
49 
25 
E.N.E 
10 
4 
4 
4 
8 
20 
66 
103 
88 
72 
39 
23 
E 
9 
3 
3 
4 
8 
43 
71 
50 
37 
29 
22 
18 
E.S.E 
5 
3 
3 
4 
10 
53 
54 
49 
48 
44 
26 
9 
S.E 
5 
3 
2 
3 
17 
31 
26 
22 
33 
24 
20 
8 
S.S.E 
20 
11 
7 
11 
23 
33 
23 
26 
31 
54 
56 
28 
S 
25 
24 
24 
18 
36 
12 
8 
5 
8 
14 
26 
30 
s.s.w 
74 
79 
80 
80 
57 
31 
12 
14 
8 
13 
36 
59 
s.w 
55 
66 
64 
62 
45 
17 
9 
4 
4 
4 
12 
41 
w.s.w. ... 
23 
27 
32 
31 
15 
6 
3 
1 
2 
3 
1 
8 
w. 
18 
14 
11 
8 
6 
1 
1 
1 
2 
4 
W.N.W. ... 
20 
29 
30 
31 
14 
8 
2 
1 
1 
6 
16 
N.W. 
21 
23 
24 
22 
39 
16 
8 
3 
3 
3 
4 
11 
N.N.W. ... 
39 
44 
48 
51 
65 
58 
31 
17 
2 
3 
4 
23 
These numbers give the Cartesian components of Table 6, which are 
also shown graphically in Fig. 2. 
TABLE 6. 
Wind Direction Components. 
Hour. 
N. 
E. 
I 
-64 
-112 
Ill 
-65 
-153 
V 
-59 
-162 
YII 
-51 
-154 
IX 
-46 
- 91 
XI 
-19 
+ 82 
XIII 
+ 16 
+ 196 
XV 
+ 33 
+ 235 
XVII 
+ 28 
+ 240 
XIX 
+ 2 
+ 209 
XXI 
-27 
+ 135 
XXIII 
-30 
- 0 
I)ay 
-283 
+ 425 
