204 
DR. C. CHREE: DISCUSSION OF KEW MAGNETIC DATA 
Table VII.—Diurnal Inequality in Horizontal Force, 
lb. 
2b. 
3h. 
4h. 
5h. 
6h. 
7 
h. 
8b. 
9h. 
lOh. 
lib. 
12b. 
January 
— 
16 
— 
17 
— 
5 
+ 
9 
+ 
32 
+ 
47 
+ 
49 
+ 31 
- 12 
- 30 
- 47 
- 17 
February . 
+ 
16 
+ 
7 
+ 
10 
+ 
20 
+ 
34 
+ 
48 
+ 
53 
+ 36 
- 20 
- 61 
- 88 
- 69 
March . . . 
+ 
31 
+ 
27 
+ 
29 
+ 
27 
+ 
41 
+ 
48 
+ 
41 
- 10 
- 89 
-143 
-157 
-112 
April . . . 
+ 
55 
+ 
37 
+ 
29 
+ 
27 
+ 
28 
+ 
26 
+ 
5 
- 47 
-129 
-195 
-198 
-145 
May .... 
+ 
51 
+ 
42 
+ 
33 
+ 
23 
+ 
7 
- 
30 
- 
84 
-137 
-175 
-187 
-160 
-108 
June 
+ 
45 
+ 
31 
+ 
24 
+ 
27 
+ 
15 
- 
22 
- 
76 
-132 
-182 
— 208 
-185 
-134 
July. . . . 
+ 
48 
+ 
32 
+ 
22 
+ 
18 
+ 
5 
- 
32 
- 
89 
-146 
-194 
-204 
-173 
-104 
August. . . 
63 
+ 
53 
+ 
44 
+ 
30 
+ 
11 
- 
27 
- 
87 
-154 
-201 
-213 
-167 
- 86 
September 
+ 
55 
46 
+ 
43 
+ 
49 
+ 
50 
+ 
24 
- 
25 
- 94 
-168 
-216 
-195 
-105 
October . . 
+ 
42 
+ 
43 
+ 
47 
+ 
55 
+ 
68 
+ 
63 
+ 
39 
- 21 
- 98 
-154 
-159 
-127 
November. 
+ 
5 
+ 
4 
+ 
18 
+ 
35 
+ 
53 
+ 
58 
+ 
44 
+ 17 
- -41 
- 84 
- 87 
— 65 
December . 
— 
7 
— 
1 
+ 
12 
+ 
29 
+ 
50 
+ 
63 
+ 
62 
+ 47 
+ 7 
- 33 
— 45 
- 39 
Winter. . . 
— 
i 
— 
2 
+ 
9 
+ 
23 
+ 
42 
+ 
54 
+ 
52 
+ 33 
- 17 
- 52 
- 67 
- 48 1 
Equinox . 
+ 
46 
+ 
38 
+ 
37 
+ 
40 
+ 
47 
+ 
40 
+ 
15 
- 43 
-121 
-177 
-177 
-122 
Summer . 
+ 
52 
+ 
39 
+ 
31 
+ 
24 
+ 
9 
28 
- 
84 
-142 
-188 
-203 
-171 
-108 
Year . . . 
+ 
32 
+ 
25 
+ 
25 
+ 
29 
+ 
33 
+ 
22 
— 
6 
- 51 
-108 
-144 
-138 
- 93 
Table VIII.—Diurnal Inequality in Horizontal 
Year. 
lb. 
21i. 
3b. 
l 
4b. 
5b. 
6b. 
7b. 
8h. 
9b. 
10b. 
lib. 
12b. 
1890 
+ 
34 
+ 
25 
+ 
24 
+ 
29 
+ 
33 
19 
- 10 
- 52 
-109 
— 142 
-133 
- 84 
1891 
42 
+ 
37 
+ 
38 
+ 
43 
+ 
43 
+ 
25 
- 11 
- 67 
-135 
—182 
-182 
-134 
1892 
+ 
61 
+ 
51 
+ 
49 
+ 
49 
39 
+ 
26 
- 18 
- 89 
-174 
-232 
-231 
-166 
1893 
+ 
64 
+ 
56 
+ 
55 
+ 
£9 
+ 
62 
+ 
41 
- 9 
- 86 
-178 
-244 
-251 
-187 
1894 
+ 
60 
+ 
51 
+ 
55 
+ 
55 
+ 
54 
+ 
40 
- 8 
- 82 
-169 
-230 
-234 
-186 
1895 
+ 
55 
4- 
51 
+ 
49 
+ 
52 
+ 
5 L 
+ 
37 
- 10 
— 75 
— 156 
-206 
-213 
-157 
1896 
+ 
44 
+ 
36 
+ 
36 
+ 
36 
+ 
41 
+ 
29 
- 3 
— 56 
-129 
-180 
-184 
-135 
1897 
+ 
41 
+ 
33 
+ 
33 
+ 
37 
+ 
39 
+ 
32 
+ 3 
— 50 
-110 
-160 
-159 
-114 
1898 
+ 
38 
+ 
32 
+ 
31 
+ 
34 
+ 
35 
+ 
21 
- 10 
- 61 
-117 
-152 
-149 
-105 
1899 
+ 
36 
+ 
28 
+ 
27 
+ 
30 
+ 
35 
+ 
26 
- 5 
— 55 
-117 
-154 
-147 
-102 
1900 
+ 
27 
+ 
23 
+ 
25 
+ 
29 
+ 
31 
_ 
+ 
_ 
22 
- 3 
- 46 
_ 
-100 
_ 
-137 
-136 
- 92 
