210 
DR. C. CHREE: DISCUSSION OF KEW MAGNETIC DATA 
Table XI.—Diurnal Inequality in Vertical Force, 
111. 
2h. 
3h. 
4h. 
5h. 
6h. 
7h. 
8h. 
9h. 
lOh. 
llh. 
121i. 
January 
_ 
9 
_ 
11 
_ 
14 
- 13 
— 
11 
— 
13 
— 
17 
— 
21 
- 26 
- 30 
- 25 
- 28 
February . 
— 
8 
- 
16 
— 
21 
- 18 
- 
16 
- 
16 
- 
17 
- 
20 
- 25 
- 43 
- 49 
- 46 
March . . 
+ 
8 
— 
2 
- 
6 
— 5 
- 
6 
- 
8 
- 
2 
- 
7 
- 35 
— 75 
-108 
-113 
April . . 
+ 
17 
+ 
7 
+ 
3 
+ 
3 
4 
2 
4 
5 
4 
7 
- 
9 
- 50 
- 99 
-140 
-154 
May. . . 
+ 
18 
+ 
10 
+ 
2 
+ 
8 
+ 
9 
4 
3 
- 
12 
- 
34 
- 80 
-127 
-162 
-165 
June . . 
+ 
2 
— 
10 
- 
9 
- 4 
- 
4 
- 
14 
- 
20 
- 
39 
- 70 
-111 
-140 
-131 
July. . . 
— 
7 
- 
24 
- 
28 
- 24 
- 
17 
- 
31 
- 
32 
- 
42 
- 68 
- 92 
-127 
-122 
August. . 
+ 
3 
- 
1 
- 
2 
+ 
3 
4 
15 
+ 
15 
+ 
12 
- 
6 
- 48 
- 86 
-119 
-126 
September. 
0 
- 
5 
- 
9 
- 8 
- 
11 
- 
8 
- 
3 
- 
19 
- 52 
- 86 
-108 
-105 
October. . 
- 
1 
- 
7 
- 
14 
- 12 
- 
12 
- 
11 
- 
5 
- 
2 
- 17 
- 50 
- 74 
- 74 
November. 
— 
8 
- 
9 
- 
11 
- 15 
- 
13 
- 
19 
- 
20 
- 
21 
- 26 
- 43 
- 42 
- 28 
December . 
+ 
2 
- 
3 
- 
5 
- 6 
— 
4 
— 
4 
- 
5 
— 
9 
- 16 
- 20 
- 25 
- 27 
Winter. . 
_ 
6 
_ 
10 
— 
13 
- 13 
_ 
11 
— 
13 
_ 
15 
— 
18 
- 23 
- 36 
- 35 
- 32 
Equinox . 
+ 
6 
- 
2 
- 
7 
- 6 
- 
f 
4 
- 
5 
- 
1 
- 
9 
- 39 
- 78 
-107 
-Ill 
Summer . 
+ 
4 
- 
6 
- 
9 
- 4 
4 
1 
- 
7 
- 
13 
- 
30 
- 67 
-104 
-137 
-136 
Tear. . . 
+ 
1 
— 
6 
9 
- 8 
— 
6 
— 
8 
— 
10 
— 
19 
- 43 
- 73 
- 93 
- 93 
Table XII.—Diurnal Inequality in Vertical 
Year. 
lh. 
2h. 
31i. 
4h. 
5h. 
6h. 
7k. 
81i. 
9k. 
10b. 
llh. 
12k. 
1890 
0 
- 8 
- 12 
- 8 
- 5 
- 8 
- 8 
- 18 
- 40 
- 68 
- 86 
- 87 
1891 
- 
9 
- 13 
- 19 
- 19 
- 14 
- 13 
- 14 
- 23 
- 51 
- 88 
— 112 
-110 
1892 
— 
16 
- 25 
- 32 
- 28 
- 21 
- 21 
- 22 
- 32 
- 57 
— 95 
—123 
-122 
1893 
- 
4 
— 15 
- 17 
- 13 
— 7 
- 6 
- 4 
- 14 
— 47 
- 99 
—132 
-131 
1894 
- 
8 
- 19 
- 27 
- 28 
- 25 
- 22 
- 21 
- 28 
- 60 
-103 
-130 
-125 
1895 
- 
9 
- 21 
- 26 
- 25 
- 22 
- 20 
- 20 
- 27 
- 56 
- 97 
-119 
-118 
1896 
- 
5 
- 16 
- 20 
- 22 
- 18 
- 17 
- 19 
- 29 
- 59 
- 95 
-118 
-114 
1897 
4 
5 
- 7 
- 14 
- 15 
- 15 
- 17 
- 20 
- 29 
- 54 
- 87 
-110 
-106 
1898 
- 
3 
- 12 
- 17 
- 14 
- 12 
- 15 
- 19 
- 32 
- 58 
- 90 
-110 
-107 
1899 
- 
7 
- 14 
- 16 
- 14 
- 12 
- 12 
- 14 
- 23 
- 48 
— 75 
- 95 
- 94 
1900 
4 
11 
4 3 
- 2 
- 1 
4 1 
- 5 
- 7 
- 16 
- 40 
- 73 
- 99 
-100 
