10 



Daily Observations of Magnetometers, April 26 — May 10. 1843. 



Gbttingen 



Mean Time of 



Declination 



Observation. 



d. li. m. 



Apr. 26 18 



20 



22 



Apr. 27 



2 



4 



6 



8 



10 



18 



20 



22 



Apr. 28 



2 



4 



6 



8 



10 



18 



20 



22 



Apr. 29 



2 



4 



6 



8 



10 



Apr. 30 18 



20 



22 



1 



2 



4 



6 



8 



10 



18 



20 



22 



2 

 2 

 4 

 6 

 8 



10 



18 



20 



22 



3 

 2 

 4 

 6 

 8 



10 



May 



May 



May 



Declina- 

 tion. 



25 19 



67 



17 



99 



22- 



13 



30 



12 



30 



07 



25 



92 



22 



79 



22 



58 



23 



26 



25 17 



83 



18 



95 



22 



85 



27 



43 



29 



85 



25 



86 



22 



58 



22 



18 



21 



21 



25 19 



76 



18 



21 



21 



48 



20 



70 



29 



95 



27 



20 



24 



17 



23 



27 



22 



74 



25 19 



65 



18 



82 



22 



06 



28 



27 



29 



36 



25 



38 



23 



46 



22 



42 



19 



22 



25 19 



15 



19 



65 



21 



42 



26 



89 



24 



74 



25 20 



63 



20 



57 



22 



•79 



26 



•50 



27 



•40 



25 



•75 



25 



02 



23 



93 



23 



•73 



BlFlLAR. 



Cor- 

 rected. 



Se. Div 

 537^9 



533^8 

 528-7 

 53b7 

 538-5 



.* 



548-0 

 547-7 



541^6 



536-8 



529^6 



534-9 



498^1* 



503-9 



507-0 



504-6 



503 5 



497-1 

 489-9 

 486-1 

 490-4 

 500-9 

 504-6 

 506-8 

 508-6 

 509-4 



498-3 

 492-7 

 489-9 

 491-5 

 5021 

 491-2 

 509-3 

 513-4 

 501-2 



494-4 

 487-5 

 4896 

 485^4 

 497^8 

 506^6 

 510-7 

 510^3 

 504-0 



498-1 

 498-4 

 489-9 

 494-1 

 504-1 

 508-4 

 510-9 

 511-5 

 506-0 



riierino- 

 meter 



41-9 

 41-5 

 42-4 

 46-0 

 48-8 



53-5 

 52-0 



47-8 

 47-2 

 47-2 

 47-9 

 48-8 

 48-3 

 48-0 

 481 

 47-3 



42-8 

 42-6 

 43-8 

 47-8 

 52-2 

 54-6 

 55-0 

 53-4 

 52-0 



47-2 

 46^9 

 48-0 

 51-7 

 55-4 

 58-4 

 59-8 

 60-0 

 57-9 



49^0 

 48^] 

 48^6 

 51^7 

 551 

 576 

 59^0 

 58-3 

 557 



48^8 

 48-3 

 49^1 

 5h2 

 55^3 

 58^8 

 60-7 

 61^4 

 59^1 



Balance. 



Cor- 

 rected. 



Thermo- 

 meter. 



675^2 



42-. 



677^1 



42.. 



673^4 



43-( 



646-1 



45- 



6460 



47-( 



671-1 



49- 



688-3 



51- 



683-6 



51- 



676-8 



50^ 



675-5 



47- 



672-0 



47- 



665-5 



47^ 



661-1 



47^ 



664-4 



48^ 



672-7 



48^ 



682-2 



48^ 



684-4 



48^ 



671-1 



47- 



680-7 



43- 



672-5 



43- 



661-1 



44- 



653-4 



47- 



654-8 



50- 



668-4 



52- 



669-8 



53- 



665-5 



52- 



663-2 



51- 



* 





669-7 



47^ 



666-9 



47- 



662-3 



48^ 



659-8 



50- 



6510 



54- 



664-9 



56- 



662-9 



57- 



669-3 



58- 



667-5 



56- 



667-5 



49- 



672-6 



48- 



668-7 



49- 



658-2 



51- 



643^9 



53- 



657^6 



55- 



663-9 



56- 



667-0 



56- 



672-0 



54- 



675-8 



49- 



671-7 



48- 



670-1 



49- 



655-7 



50- 



640-9 



53- 



644-8 



56- 



655-9 



58- 



663-0 



59- 



661-6 



57- 



Gbttingen 



Mean Time of 



Declination 



Observation. 



May 

 May 



May 



May 



May 



d. h. m. 



3 18 

 20 

 22 



4 

 2 

 4 

 6 



8 



10 



18 



20 



22 



5 

 2 

 4 

 6 

 8 



10 



18 



20 



22 



6 

 2 

 4 

 6 

 8 



10 



May 7 18 



May 



20 



22 







2 



4 



6 



8 



10 



18 



20 



22 



9 



2 



4 



6 



8 



10 



18 7 



20 



22 



May 10 



2 



4 



6 



8 



10 



Declina- 

 tion. 



25 20 

 20 

 21 

 27 

 32 

 28 

 25 

 24 

 23 



25 20 

 19 

 21 

 27 

 28 

 24 

 24 

 25 

 24 



25 21 

 20 

 21 

 28 

 29 



24 



21 



4 



25 21 

 19 

 22 

 27 

 27 

 24 

 23 

 22 

 22 



25 19 

 19 

 21 



27 

 28 

 25 

 22 

 20 

 20 



25 



17 

 18 

 21 

 25 

 30 

 26 

 17 

 23 

 26 



84 

 05 

 78 

 00 

 28 

 27 

 29 

 31 

 97 



43 

 09 

 98 

 27 

 84 

 53 

 06 

 05 

 84 



28 

 82 

 71 

 00 

 60 



96 

 64 

 10 



84 

 56 

 92 

 20 

 43 

 84 

 30 

 74 

 05 



47 

 17 

 98 

 63 

 35 

 76 

 49 

 00 

 57 



61 

 80 

 75 

 92 

 16 

 13 

 69 

 48 

 59 



BiFlLAK. 



Cor- 

 rected. 



So. Div. 

 4 



5 



499 

 497 

 491 

 493 

 509 

 502 

 511 

 511 

 507 



496 

 493 

 485 

 490 

 500 

 509 

 516 

 512 

 508 



496 

 494 

 493 

 497 

 508 

 517 

 516 

 518 

 422 



464 

 478 

 461 

 481 

 484 

 489 

 498 

 509 

 499 



481 

 481 

 480 

 476 

 492 

 496 

 505 

 505 

 505 



482 

 487 

 486 

 487 

 514 

 518 

 531 

 512 

 499 



Thermo- 

 meter. 



50 

 49 

 50 

 53 

 56 

 59 

 60 

 59 

 57 



51 

 50 

 50 

 51 

 52 

 53 

 54 

 53 

 51 



47 

 47 

 48 

 50 

 53 

 55 

 55 

 54 

 53 



48 

 48 

 49 

 50 

 53 

 51 

 52 

 52 

 51 



47 



48 

 50 

 52 

 54 

 55 

 55 

 56 

 54 



48 

 48 

 49 

 51 

 53 

 55 

 56 

 56 

 54 



Balance. 



Cor- 

 rected. 



.Mir. Div. 



673-6 

 667-1 

 668-3 

 644-3 

 639-1 

 651-8 

 664^6 

 676-7 

 665-2 



669-7 

 666-9 

 671-3 

 651-5 

 658-2 

 669-0 

 672-2 

 673-7 

 663-1 



676-8 

 679-1 

 657-8 

 645-0 

 640-8 

 641-1 

 660-2 

 701-7 

 400-2 



6361 

 665-3 

 692-9 

 693-0 

 685-5 

 692-0 

 684-0 

 678-4 

 674-6 



604-4 

 645-7 

 673-7 

 660-8 

 657-1 

 688-6 

 695-0 

 716-6 

 627-0 



654^9 

 643-0 

 659-0 

 660-7 

 664-3 

 696^9 

 705^6 

 708-6 

 680-4 



Declination. Torsion removed, circle reading, — May l* 23'>, 36° ; 6^ 5^, 150°t ; lOd 3^, 155°. 

 BiFiLAK. ^=0-0001205.* Balance. /;=0-000015 a2)proximately. 



* April 27d Sh— 6h. BifiUr magnet adjusted. 



* April 28'i Oh— 2h. Bitilar magnet again adjusted. 



May 2d. Several observations of the Declination not made for the same reason as on April 18d. 



t MayGd 4I1. Observations made for the zero of the Declination scale when a fibreof the suspension-thread was broken. The torsion was ultimately eliminate 

 May fid 10^— 13h. An excessi^•c magnetic disturbance, during which the torsion circle of the BiJilar Magnetometer was turned from 287° 44' to 29 i° 4-5' ; it " 

 left reading -28;° 41'. 

 May yd. The Bifilar magnet has been moving irregularly throughout the day ; the reading has often been as high as 512 Sc. Div. 



