18 



Results of Makerstoun Observations, 1845. 



TABLE XXXI. — Mean Values of the Variations of the Vertical Component of Magnetic Force, the 

 whole Vertical Component being Unity, for each Civil Week-Day and Week of 1845. 



Civil 

 Day. 



Jan. 



Feb. 



March. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 





0-00 



O'OO 



0-00 



0.00 



0-00 



0-00 



n-oo 



0-00 



0-UO 



0-00 



000 



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 



5.384 



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 



52S2 



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 



[4011] 



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 





4048 



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 from 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. 



0-00 



Day. 



0-00 



Dav. 



0-00 



Day. 



0-00 



Day. 



0-00 



Day. 



frOO 



15 



0051 







0052 







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 



11 



0069 



11 



0166 



25 



0150 



4 



0152 



4 



0084 



27 



0000 



12 



0003 



12 



0152 



26 



0105 



5 



0166 



5 



0103 



28 



0029 



13 



0037 



13 



0160 



27 



0137 1 



6 



0142 



6 



0110 



29 



0025 



14 



0053 











7 



0063 



7 



0127 



