22 



Hourly Observations of Magnetometers, April 17 — 23, 1844. 



Gbttingen 

 Mean Time 

 of Declina- 

 tion Obs. 



d. h. m. 



17 21 



22 



23 



18 

 1 



6 



7 



8 



9 



10 Of 



11 of 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 

 19 



6 



7 



8 



9 



10 



11 



12 



Declina- 

 tion. 



25 



25 



13 







14 







15 







16 







17 







18 







19 







20 







21 







22 







23 







20 







1 







2 







3 







4 



o 



25 



15-45 

 18-41 

 18-77 

 21-88 

 24-08 

 25-02 

 2513 

 22-74 

 20-80 

 2018 

 21-50 

 19-53 

 1712 

 14-92 

 12-73 

 12-55 



15-83 

 17-56 

 16-38 

 16-99 

 17-19 

 1702 

 16-38 

 1507 

 14-77 

 15-45 

 18-11 

 20-79 

 22-82 

 23-58 

 22-55 

 21-27 

 19-61 

 18-34 

 18-37 

 18-20 

 18-08 

 17-89 

 1515 

 18-14 



17-39 

 1814 

 1702 

 16-68 

 15-96 

 15-44 

 15-44 

 14-64 

 15-98 

 1710 

 19-44 

 23-21 

 25-14 

 24-75 

 2413 

 2117 



BlFILAR. 



Cor- 

 rected. 



Thermo- 

 meter. 



Sc. Div. 

 510-3 

 514-8 

 515-7 

 510-1 

 518-0 

 511-9 

 522-9 

 518-2 

 521-6 

 537-9 

 529-6 

 533-8 

 5310 

 526-1 

 528-6 

 517-2 



516-5 

 517-7 

 520-2 

 518-7 

 518-2 

 519-3 

 519-6 

 518-2 

 515-6 

 509-9 

 507-1 

 504-8 

 511-0 

 515-7 

 516-6 

 528-6 

 522-0 

 521-7 

 527-1 

 529-3 

 527-5 

 525-4 

 532-8 

 525-0 



523-5 

 524-3 

 520-8 

 521-4 

 520-8 

 520-7 

 520-6 

 516-6 

 510-9 

 507-5 

 504-0 

 508-3 

 510-4 

 5120 

 514-2 

 521-5 



51-8 

 51-6 

 51-4 

 51-2 

 51-3 

 51-6 

 52-0 

 52-5 

 530 

 53-8 

 54-2 

 54-5 

 54-5 

 54-2 

 53-9 

 53-6 



53-3 

 530 

 52-7 

 52-4 

 521 

 51-8 

 51-5 

 51-2 

 50-9 

 50-9 

 50-9 

 50-9 

 51-2 

 51-8 

 52-5 

 53-2 

 540 

 54-9 

 55-0 

 55-1 

 551 

 550 

 550 

 54-9 



54-8 

 54-6 

 54-4 

 54-3 

 54-2 

 54-0 

 53-9 

 53-8 

 53-8 

 53-8 

 53-9 

 54-4 

 550 

 55-9 

 56-6 

 57-0 



Balance. 



Cor- 

 rected. 



Thermo- 

 meter. 



Mic. Div. 

 751-2 

 727-2 

 714-2 

 724-0 

 727-3 

 7411 

 735-6 

 742-0 

 7460 

 743-1 

 734-0 

 748-6 

 751-4 

 746-2 

 719-9 

 706-9 



725-7 

 728-9 

 739-4 

 747-9 

 748-5 

 749-7 

 752-5 

 757-6 

 757-1 

 756-8 

 755-3 

 749-5 

 748-1 

 750-3 

 754-9 

 751-5 

 745-9 

 753-4 

 755-5 

 758-5 

 753-2 

 750-2 

 737-4 

 735-8 



739-2 

 739-8 

 746-3 

 745-0 

 743 

 7450 

 749-1 

 750-5 

 750-1 

 743-3 

 746-8 

 747-5 

 744- 1 

 736-8 

 743-5 

 753-8 



511 

 51-1 

 51-2 

 51-4 

 51-8 

 52-6 

 53-5 

 54-2 

 54-9 

 55-5 

 55-7 

 55-5 

 550 

 54-5 

 54-0 

 53-5 



530 

 52-5 

 52-0 

 51-6 

 51-2 

 50-8 

 50-5 

 50-2 

 50-2 

 50-2 

 50-5 

 51-0 

 521 

 53-2 

 54-5 

 55-5 

 56-3 

 56-5 

 56-5 

 56-3 

 56-0 

 55-7 

 55-5 

 55-4 



55-2 

 55-1 

 55-0 

 54-8 

 54-5 

 54-2 

 54-0 

 53-9 

 54-0 

 54-0 

 55-1 

 56-2 

 57-2 

 58-0 

 58-5 

 58-5 



W 

 H 

 H 

 W 

 W 

 W 

 W 

 W 

 W 

 B 

 B 

 B 

 B 

 B 

 W 

 W 



W 



W 



W 



W 



W 



W 



B 



B 



H 



B 



H 



B 



H 



B 



B 



B 



B 



W 



W 



W 



W 



W 



H 



H 



H 

 H 

 H 

 H 

 H 

 H 

 W 

 W 

 B 

 W 

 W 

 W 

 W 

 W 

 W 

 W 



Gbttingen 

 Mean Time 

 of Declina- 

 tion Obs. 



d. 

 20 



h. m. 



5 



22 



21 13 



14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 

 1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 

 10 

 11 

 12 



8 



9 



10 



11 



12 



Declina- 

 tion. 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 

 23 



6 



7 



8 



9 



10 



11 



12 



25 



25 



25 



20-38 

 17-76 

 18-16 

 17-39 

 17-24 

 17-56 

 17-04 

 17-89 



16-84 

 15-74 

 17-36 

 14-57 

 16-68 

 16-84 

 16-92 

 14-80 

 1302 

 13-69 

 17-46 

 20-87 

 23-19 

 23-48 

 23-56 

 22-20 

 20-96 

 20-06 

 19-17 

 18-27 

 1810 

 18-20 

 18-05 

 17-70 



17-70 

 16-82 

 17-58 

 16-97 

 16-60 

 15-39 

 14-40 

 12-75 

 12-46 

 13-32 

 16-97 

 20-85 

 23-72 

 22-04 

 2203 

 22-35 

 22-42 

 20-40 

 19-24 

 19-51 

 18-25 

 17-96 

 17-63 

 16-99 



BlFILAE. 



Cor- 

 rected. 



Thermo- 

 meter. 



Sc. Div. 



523-6 

 524-9 

 528-1 

 526-7 

 527-7 

 528-4 

 5260 

 525-2 



525-9 

 526-6 

 526-2 

 522-2 

 523-7 

 526-2 

 5251 

 523-6 

 517-2 

 512-9 

 509-9 

 511-5 

 515-7 

 522-2 

 527-7 

 529-2 

 5350 

 534-5 

 528-0 

 533-7 

 532-6 

 530-8 

 530-8 

 530-5 



529-6 

 529-4 

 527-8 

 526-1 

 527-1 

 527-6 

 525-7 

 523-5 

 520-0 

 516-2 

 513-4 

 512-3 

 517-6 

 517-7 

 522-0 

 533-2 

 529-0 

 537-1 

 534-3 

 5350 

 536-2 

 534-7 

 534-9 

 532-8 



57-2 

 57-3 

 57-3 

 57-2 

 57-0 

 57-0 

 56-6 

 56-2 



51-7 



51-4 

 511 

 50-8 

 50-5 

 50-2 

 50-0 

 49-8 

 49-6 

 49-4 

 49-4 

 49-6 

 49-9 

 50-3 

 50-7 

 51-2 

 51-8 

 52-4 

 52-9 

 53-2 

 53-3 

 531 

 52-9 

 52-6 



52-3 

 51-9 

 51-6 

 51-2 

 50-8 

 50-5 

 50-1 

 49-9 

 49-7 

 49-6 

 49-7 

 49-9 

 50-2 

 50-7 

 51-2 

 51-9 

 52-6 

 53-0 

 53-2 

 53-2 

 531 

 530 

 52-8 

 52-6 



Balance. 



Cor- 

 rected. 



Thermo- 

 meter 



Mic. Div. 

 757-9 



751-5 

 744-9 

 744-8 

 742-9 

 738-3 

 740-9 

 743-4 



735-8 

 735-8 

 735-7 

 735-3 

 738-2 

 731-2 

 737-4 

 745-4 

 758-3 

 748-3 

 7391 

 737-6 

 723-6 

 7331 

 740-9 

 744-3 

 743-2 

 754-3 

 753-4 

 745-3 

 739-2 

 734-4 

 731-5 

 727-6 



731-3 



729-7 

 727-2 

 7381 

 735-7 

 751-9 

 768-0 

 733-5 

 763-7 

 775-4 

 734-8 

 724-8 

 711-8 

 729-6 

 749-7 

 747-3 

 754-6 

 747-0 

 748-5 

 746-5 

 720-7 

 734-2 

 727-5 

 726-0 



58-5 

 58-4 

 58-2 

 58-0 

 57-4 

 56-9 

 56-3 

 560 



50-9 

 50-5 

 50-2 

 49-9 

 49-5 

 49-2 

 490 

 48-9 

 490 

 49-2 

 49-5 

 501 

 50-7 

 51-4 

 51-9 

 52-5 

 530 

 53-6 

 540 

 540 

 53-7 

 53-3 

 52-8 

 52-3 



51-9 

 51-4 

 50-9 

 50-4 

 500 

 49-7 

 49-3 

 49- 1 

 49-2 

 49-4 

 49-9 

 50-4 

 510 

 51-7 

 52-5 

 53-3 

 54-0 

 54-2 

 541 

 53-8 

 53-5 

 53-2 

 52-8 

 52-5 



BlFILAR. 



Declination. Magnet untouched, April 5* — May 28 d . 

 Observed 2™ after the Declination, /fc=0-000140. Balance. Observed 3 m after the Declination, &=:O0000085. 



t Extra Observations made. 



April 18 d 6 1 "- — 8 h . The magnets evidently unsteady. 



April 19 d h . The magnets unsteady. 



