HORIZONTAL FORCE OF THE EARTH’S MAGNETISM. 
395 
Table III. — Variations of Daily Mean Horizontal Force for the Lunar Tropical Period 
(27’3 days), commencing with Moon’s greatest North Declination, in millionths 
of the whole Horizontal Force. 
Day. 
1844. 
1845. 
Observed 
Lunar. 
Corrections 
for Solar. 
Corrected 
Lunar. 
Observed 
Lunar. 
Corrections 
for Solar. 
i Corrected 
Lunar. 
1. 
+ 179 
+ 
83 
+ 262 
+ 177 
-29 
+ 148 
2. 
+ 164 
+ 
92 
+ 255 
+ 57 
— 1 
+ 56 
3. 
+ 269 
+ 
95 
+ 364 
+ 136 
+ 19 
+ 155 
4. 
+ 88 
+ 
97 
+ 185 
-124 
+ 40 
- 84 
5. 
- 61 
+ 
84 
+ 23 
- 3 
+ 54 
+ 51 
6. 
-263 
+ 
74 
-189 
- 75 
+ 62 
- 13 
7. 
-172 
+ 
54 
- 118 
-132 
+ 59 
- 73 
8. 
-145 
+ 
45 
-100 
-232 
+ 62 
-170 
9. 
- 65 
+ 
23 
- 42 
— 154 
+ 53 
-101 
10. 
- 61 
+ 
9 
— 52 
- 99 
+ 41 
- 58 
11. 
- 75 
— 
20 
- 95 
-130 
+ 13 
-117 
12. 
+ 116 
— 
39 
+ 77 
+ 29 
- 1 
+ 28 
13. 
+ 67 
— 
68 
— 1 
- 47 
-14 
- 61 
14. 
+ 151 
— 
86 
+ 65 
— 50 
- 9 
- 59 
15. 
+ 130 
— 
106 
+ 24 
+ 129 
-10 
+ 119 
16. 
+ 190 
— 
114 
+ 76 
+ 163 
- 7 
+ 156 
17. 
+ 202 
— 
120 
+ 82 
+ 166 
— 22 
+ 144 
18. 
+ 129 
— 
116 
+ 13 
+ 5 
-20 
- 15 
19. 
+ 73 
103 
— 30 
-328 
-23 
-351 
20. 
+ 19 
— 
81 
- 62 
- 38 
— 20 
- 58 
21. 
+ 13 
55 
- 42 
- 1 
-32 
— 33 
oo 
-169 
25 
-194 
+ 48 
-36 
+ 12 
23. 
-120 
-1 
7 
-113 
+ 80 
-38 
+ 42 
24. 
-103 
+ 
36 
- 67 
+ 24 
-37 
- 13 
25. 
-284 
+ 
62 
222 
+ 67 
— 50 
+ 17 
26. 
-134 
+ 
75 
- 59 
+ 161 
-46 
+ 115 
27. 
-125 
+ 
83 
- 42 
+ 182 
-29 
+ 153 
Note. — When there was a 28th day in the period, +110 and +150 (the means for the 27th and 1st days) 
were employed for that day in 1844 and 1845 respectively. See Note to Table I. 
