Magnetic Declination, 1846. 



33 



TABLE LIX. — Diurnal Range of the Horizontal Component of Magnetic Force for each Civil Day, 

 as deduced from the 12 Daily Observations, with the Means for each Week in 1846. 



Civil 

 Day. 



Jan. 



Feb. 



March. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 





0-0 



0-0 



0-0 



0-0 



0-0 



0-0 



0-0 



0-0 



0-0 



0-0 



0-0 



0-0 



1 



0124 



[0196] 



[0248] 



0417 



0408 



0513 



0648 



0836 



0381 



0405 



[0290] 



0356 



2 



0097 



0234 



0289 



0382 



0505 



0713 



0728 



[0649] 



0346 



0400 



0263 



0552 



3 



0121 



0174 



0239 



0273 



[0621] 



0617 



0549 



0648 



0351 



0452 



0339 



0148 



4 



[0145] 



0151 



0347 



0344 



1200 



0572 



0703 



0560 



0344 



[0365] 



0229 



0247 



5 



0132 



0128 



0215 



[0695] 



0666 



0454 



[0670] 



0383 



1636 



0223 



0239 



0161 



6 



0138 



0161 



0200 



2083 



0539 



0535 



0968 



0666 



[0688] 



0232 



0250 



[0165] 



7 



0258 



0157 



0147 



0606 



0562 



[0613] 



0552 



1160 



0324 



0481 



0522 



0121 



8 



1281 



[0165] 



[0177] 



0483 



0337 



0374 



0521 



1073 



0902 



1474 



[0297] 



0146 



9 



0123 



0269 



0208 



0424 



0481 



0998 



0609 



[0808] 



0572 



0477 



0235 



0167 



10 



0171 



0202 



0084 



0576 



[0848] 



0748 



0676 



0652 



0402 



0591 



0328 



0180 



11 



[0215] 



0073 



0207 



0617 



0536 



0564 



0968 



0587 



0861 



[0611 



0207 



0186 



12 



0279 



0288 



0250 



[0512] 



2045 



0514 



[0748] 



0709 



0698 



0448] 



0254 



0171 



13 



0130 



0142 



0529 



0601 



1125 



0522 



0949 



0832 



[0597] 



0397 



0239 



[0220] 



14 



0308 



0401 



0455 



0421 



0740 



[0681] 



0756 



0541 



0582 



0279 



0279 



0383 



15 



0090 



[0277] 



[0444] 



0433 



0652 



1026 



0528 



0775 



0663 



0227 



[0525] 



0182 



16 



0153 



0439 



0223 



1161 



0567 



0764 



0628 



[0680] 



0378 



0328 



0169 



0217 



17 



0228 



0177 



0435 



0634 



[0664] 



0694 



0693 



0945 



0431 



0300 



1775 



0162 



18 



[0179] 



0217 



0770 



0435 



0506 



0450 



0579 



0460 



0347 



[0301] 



0433 



0177 



19 



0252 



0155 



0377 



[0627] 



0668 



0362 



[0619] 



0528 



0309 



0278 



0283 



0130 



20 



0121 



0170 



0389 



0448 



0852 



0390 



0624 



0428 



[0725] 



0246 



0271 



[0163] 



21 



0228 



0117 



0266 



0363 



0732 



[0430] 



0472 



0553 



0448 



0427 



0201 



0072 



22 



0186 



[0183] 



[0367] 



0720 



0668 



0425 



0718 



0501 



2407 



0470 



[0221] 



0105 



23 



0265 



0069 



0382 



0429 



0818 



0460 



0499 



[0559] 



0408 



0417 



0204 



0335 



24 



0636 



0096 



0398 



0601 



[0609] 



0495 



0841 



0601 



0587 



0348 



0190 



0143 



25 



[0252] 



0491 



0390 



0495 



0593 



0702 



0641 



0640 



0524 



[0348] 



0175 



0304 



26 



0105 



0232 



0563 



[0482] 



0425 



0493 



[0674] 



0630 



0466 



0255 



0834 



0121 



27 



0159 



0201 



0437 



0470 



0417 



0526 



0520 



0765 



[0462] 



0310 



0256 



[0211] 



28 



0163 



0178 



0498 



0479 



0377 



[0627] 



0470 



0664 



0647 



0286 



0535 



0212 



29 



0256 





[0461] 



0420 



0436 



0733 



1073 



0984 



0294 



0282 



[0469] 



0263 



30 



0162 





0466 



0410 



0594 



0659 



0680 



[0593] 



0256 



0328 



0282 



0224 



31 



0202 





0387 





[0542] 





0787 



0428 





0297 





0065 



TABLE LX.— Means of the Diurnal Ranges of the Horizontal Component of Magnetic Force, 

 with reference to the Moon's Age and Declination, for 1846. 











After 





After 





Moon's 



Mean 



Moon's 



Mean 



Moon 



Mean 



Moon 



Mean 



Age. 



Range. 



Age. 



Range. 



farthest 

 North. 



Range. 



farthest 

 North. 



Range. 



Day. 



0-00 



Day. 



0-00 



Day. 



O'OO 



Day. 



0-00 



15 



5892 







4419 







3982 



14 



5249 



16 



4915 



1 



4277 



1 



4301 



15 



5015 



17 



5922 



2 



5674 



2 



3651 



16 



3915 



18 



6215 



3 



3801 



3 



3999 



17 



3576 



19 



4459 



4 



3951 



4 



4091 



18 



4185 



20 



5362 



5 



4292 



5 



5401 



19 



4645 



21 



5567 



6 



4463 



6 



4052 



20 



6172 



22 



4509 



7 



4212 



7 



3938 



21 



5153 



23 



4495 



8 



5359 



8 



4602 



22 



4487 



24 



3967 



9 



4884 



9 



4753 



23 



4520 



25 



4333 



10 



5617 



10 



5975 



24 



4427 



26 



4475 



11 



4222 



11 



5777 



25 



4057 



27 



3927 



12 



4186 



12 



5004 



26 



5478 



28 



5307 



13 



3457 



13 



5919 



27 



4344 



29 



4607 



14 



3911 











MAG. AND MET. OBS. 1845 AND 1846. 



