;184 DE. C. CHEEE: ANALYSIS OF RESULTS FROM THE KEY* MAGNETOGEARHS 
Table XX.—Coefficients and Angles in Fourier Series 
Period, 24 hours. 
Period, 12 hours. 
1 
1 
1 
(Zi. 
h. 
Cl. 
aci. 
Uo. 
b-2. 
Co. 
1-- 
January .... 
- 1-18 
-0-61 
l'-33 
242 40 
+ 0-39 
+ o'- 75 
d-84 
27 4'3 
February .... 
- 1-43 
-1-06 
1-78 
233 38 
+ 0-52 
+ 0-86 
1-01 
31 3 
March. 
- 1-65 
-1-66 
2-34 
224 55 
+ 1-21 
+ 1-59 
2-00 
37 12 
April. 
- 1-51 
- 2-29 
2-75 
213 26 
+ 1-47 
+ 1-88 
2-39 
38 0 
May. 
- 1-84 
-2-46 
3-07 
216 47 
+ 2-14 
+ 1-50 
2-61 
55 3 
June. 
-1-57 
-3-03 
3-42 
207 24 
+ 1-81 
+ 1-66 
2-45 
47 23 
July. 
-1-6.5 
-2-75 
3-21 
210 58 
+ 1-81 
+ 1-57 
2-39 
49 0 
August .... 
-2-22 
-2-23 
3-15 
224 55 
+ 2-17 
+ 1-37 
2-57 
57 52 
September . . . 
-2-11 
-1-83 
2-79 
229 2 
+ 1-82 
+ 1-16 
2-16 
57 27 
October .... 
-1-55 
- 1-44 
2 -12 
227 12 
+ 0-94 
+ 1-31 
1-61 
35 34 
November . . . 
- 1-26 
-0-72 
1-45 
240 26 
+ 0-56 
+ 0- 85 
1-02 
33 33 
December . . . 
-0-99 
-0-32 
1-04 
251 53 
+ 0-36 
+ 0-68 
0-77 
27 54 
Mean of 12 monthly 
values . 
-1-582 
- 1-700 
— 
— 
+ 1-266 
+ 1-264 
— 
— 
Inequality for— 
Year .... 
2-322 
222 57 
1-789 
45 3 
tVinter.... 
-1-217 
-0-677 
1-393 
240 55 
+ 0-458 
+ 0-784 
0-908 
30 IS 
Equinox 
-1-707 
- 1-805 
2-484 
223 24 
+ 1-358 
+ 1-486 
2-013 
42 25 
Summer . . . 
-1-822 
- 2-620 
3-191 
214 49 
+ 1-981 
+ 1-523 
2-499 
52 27 
Table XXI.—Coefficients and Angles in Fourier Series 
Period, 24 hours. 
Period, 12 hours. 
til. 
bi. 
'i- 
ai. 
a-}. 
bo. 
Co, 
a^. 
January .... 
- 6-176 
-6-134 
6-221 
232 41 
+ 6-219 
-6-016 
6-220 
o / 
94 17 
February .... 
-0-283 
-0-087 
0-296 
252 50 
+ 0-171 
+ 0-020 
0-172 
83 25 
March. 
-0-477 
+ 0-044 
0-479 
275 13 
+ 0-212 
-0-141 
0-254 
123 44 
April. 
-0-651 
+ 0-236 
0-693 
289 54 
+ 0 • .305 
-0-240 
0-370 
■ 124 34 
May. 
-0-569 
+ 0-566 
0-803 
314 52 
+ 0-099 
-0-279 
0-296 
160 27 
J une. 
-0-560 
+ 0-566 
0-796 
315 18 
+ 0-185 
-0-277 
0-333 
146 19 
July. 
- 0 - 588 
+ 0-509 
0-778 
320 53 
+ 0-179 
-0-294 
0-345 
148 41 
August .... 
-0-656 
+ 0-511 
0-832 
307 56 
+ 0-083 
-0-316 
0-327 
165 15 
September . . . 
-0-594 
+ 0-385 
0-708 
302 57 
+ 0 - 055 
-0-317 
0-322 
170 6 
October .... 
-0-566 
+ 0-075 
0-571 
277 32 
+ 0-249 
-0-151 
0-292 
121 10 
November . . . 
-0-363 
-0-040 
0-365 
263 45 
+ 0-312 
-0-063 
0-318 
101 24 
December. . . 
-0-081 
-0-073 
0-109 
228 4 
+ 0-189 
+ 0-041 
0-193 
77 45 
Mean of 12 monthly 
values . . . 
-0-4636 
+ 0-2132 
+ 0-1881 
-0-1670 
Inequality for— 
Year .... 
tVinter .... 
-0-2256 
- 0 - 0835 
0-5103 
0-2405 
294 42 
249 41 
+ 0-2225 
-0-0047 
0-2515 
0-2225 
131 36 
91 13 
Equinox 
-0-5720 
+ 0-1848 
0-6010 
287 54 
+ 0-2052 
-0-2046 
0-2898 
134 55 
Slimmer . . . 
-0-5933 
+ 0-5382 
0-8009 
312 12 
+ 0-1365 
-0-2916 
0-3220 
154 55 
