18 
Results of Makerstoun Obseevations, 1845. 
TABLE XXXI. — Mean Values of the Variations of the Vertical Component of Magnetic Force, the 
whole A^ertical Component being Unity, for each Civil Week-Day and Week of 1845. 
Day. 
Jan. 
Feb. 
March. 
April. 
May. 
.June. 
July. 
Aug. 
Sept. 
Oct. 
Nov. 
Dec. 
0-00 
0-00 
0-00 
0.00 
0-00 
0-00 
0-00 
0-00 
0-00 
0-00 
0-00 
0-00 
1 
6201 
5760 
5601 
5468 
4717 
[5100] 
4573 
4771 
4489 
4493 
4319 
4264 
2 
6150 
[5786] 
[5555] 
5401 
5305 
5082 
4912 
4369 
4505 
4326 
[4398] 
4295 
3 
6089 
5774 
5560 
5517 
5275 
5090 
4813 
[4626] 
4905 
4475 
4330 
5219 
4 
6014 
5712 
5525 
5492 
[5262] 
5262 
4883 
4693 
4842 
4381 
4535 
4683 
5 
[6036] 
5993 
5524 
5475 
5425 
5164 
4737 
4635 
4744 
[4415] 
4766 
4703 
6 
5983 
5823 
5478 
[5481] 
5419 
5061 
[4746] 
4651 
4843 
4523 
4436 
4577 
7 
5977 
5712 
5487 
5460 
5432 
5056 
4685 
4662 
[4698] 
4427 
4264 
[4547] 
8 
6001 
5708 
5525 
5412 
5462 
[5063] 
4694 
4525 
4673 
4361 
4150 
4535 
9 
5977 
[5710] 
[5520] 
5533 
5329 
5019 
4662 
4654 
4581 
4262 
[4294] 
4419 
10 
6068 
5643 
5525 
5378 
5279 
5011 
4743 
[4701] 
4504 
4297 
4359 
4365 
11 
6032 
5677 
5569 
5481 
[5199] 
5066 
4766 
4812 
4625 
4478 
4195 
4295 
12 
[5987] 
5698 
5536 
5523 
5001 
4980 
4936 
4760 
4566 
[4283] 
4360 
4317 
13 
6018 
5582 
5528 
[5324] 
5057 
4996 
[4829] 
4793 
4543 
4376 
4423 
4506 
14 
5957 
5588 
5507 
4848 
5069 
4957 
4897 
4687 
[4582] 
4155 
4398 
[4315] 
15 
5872 
5593 
5455 
5325 
5119 
[5083] 
4892 
4800 
4638 
4131 
4381 
4315 
16 
5912 
[5562] 
[5472] 
5387 
5158 
5171 
4739 
4887 
4575 
4267 
[4379] 
4213 
17 
5955 
5587 
5356 
5431 
5194 
5187 
4732 
[4732] 
4548 
4288 
4405 
4247 
18 
5856 
5542 
5474 
5458 
[5149] 
5210 
4648 
4537 
4168 
4237 
4392 
4333 
19 
[5750] 
5478 
5511 
5245 
4905 
4881 
4620 
4724 
4345 
[4237] 
4273 
4322 
20 
5131 
5450 
5424 
[5368] 
5318 
4895 
[4728] 
4756 
4543 
4214 
4200 
4256 
21 
5815 
5562 
5418 
5330 
5202 
4816 
4764 
4737 
[4422] 
4287 
4326 
[4249; 
22 
5834 
5580 
5322 
5384 
5227 
[4948] 
4759 
4758 
4474 
4128 
4408 
4239' 
23 
5887 
[5464] 
[5387] 
5359 
5162 
5051 
4845 
4567 
4584 
4299 
[4307] 
4187 
24 
5757 
5320 
5391 
5407 
5219 
4988 
4918 
[4646] 
4418 
4414 
4453 
4155 
25 
6016 
5387 
5282 
5462 
[5226] 
5055 
4249 
4508 
4301 
4291 
4370 
3974 
26 
[5846] 
5484 
5488 
5252 
5259 
4991 
4681 
4646 
4340 
[4304] 
4083 
3919 
27 
5853 
5531 
5438 
[5245] 
5274 
4986 
[4675] 
4662 
4435 
4413 
3906 
4029 
28 
5909 
5588 
5422 
4966 
5218 
5047 
4715 
4555 
[4379] 
4236 
3980 
[401 P 
29 
5654 
5509 
5142 
5111 
[4891] 
4769 
4326 
4381 
4174 
3967 
4122 
30 
5766 
[5457] 
5243 
5084 
4837 
4716 
4253 
4322 
4159 
[4272] 
3975 
31 
5711 
5502 
4970 
4636 
[4505] 
4278 
404S 
TABLE XXXII. — Mean Variations of the Vertical Component of Magnetic Force, after Eliminating 
the Secular Change, with reference to the Moon's Age, Declination, and Distance fi-om the Earth, 
for 1845. 
Variations 
Variations 
After 
Variations 
After 
Variations 
Before 
Variations 
Before 
Variations 
Moon's 
of Ver- 
Moon's 
of Ver- 
Moon 
of Ver- 
Moon 
of Ver- 
and 
of Ver- 
and 
of Ver- 
Age. 
tical Com- 
Age. 
tical Com- 
farthest 
tical Com- 
farthest 
tical Com- 
after 
tical Com- 
after 
tical Com- 
ponent. 
ponent. 
North. 
ponent. 
North. 
ponent. 
Perigee. 
ponent. 
Apogee. 
ponent. 
Day. 
O'OO 
Day. 
0-00 
Dav. 
0-00 
Day. 
0-00 
Dav. 
0-00 
Day. 
0CH1 
15 
0051 
6 
0052 
6 
0170 
14 
0170 
7 
0133 
7 
0127 
16 
0069 
1 
0061 
1 
0106 
15 
0132 
6 
0129 
6 
0093 
17 
0044 
2 
0100 
2 
0128 
16 
0160 
5 
0115 
5 
0147 
18 
0068 
3 
0104 
3 
0000 
17 
0237 
4 
0117 
4 
0137 
19 
0109 
4 
0142 
4 
0065 
18 
0190 
3 
0101 
3 
0137 
20 
0101 
5 
0135 
5 
0123 
19 
0186 
2 
0159 
2 
0158 
21 
0045 
6 
0144 
6 
0152 
20 
0138 
1 
0138 
1 
0156 
22 
0077 
7 
0069 
7 
0134 
21 
0198 
P 
0130 
A 
0096 
23 
0103 
8 
0037 
8 
0161 
22 
0168 
1 
0168 
1 
0026 
24 
0069 
9 
0045 
9 
0158 
23 
0089 
2 
0243 
2 
0000 
25 
0021 
10 
0089 
10 
0102 
24 
0136 
3 
0193 
3 
0060 
26 
0034 
1 1 
0069 
11 
0166 
25 
0150 
0152 
4 
0084 
27 
0000 
12 
0003 
12 
0152 
26 
010.5 
t 
0166 
0103 
28 
0029 
13 
0037 
13 
0160 
27 
0137 
6 
0142 
6 
0110 
29 
0025 
14 
0053 
0063 
1 
0127 
