Hourly Obserations of Magnetometers, April 24 — 30, 1845. 



23 



Gottingen 

 Mean Time 

 of Declina- 

 tion Obs. 



d. h. 

 24 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 

 1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 

 10 

 11 

 12 



25 



li 



13 



14 



15 



16 



17 



19 



20 



21 



22 



23 

 2G 



1 

 2 

 3 

 4 

 5 







6 



7 



8 



9 



10 



11 



Declina- 

 tion. 



12 







1 



27 13 



ot: 



14 



0- 



15 



o- 



16 



o- 



17 



Of 



18 



of 



19 







20 







25 



25 



25 



24 

 24 

 25 

 24 

 25 



09-82 

 09-05 

 1006 

 10-31 

 10-43 

 09-46 

 10-53 

 12-25 

 06-46 

 07-54 

 13-22 

 15-34 

 19-37 

 24-12 

 24-80 

 21-86 

 19-62 

 08-85 

 08-92 

 09-42 

 10-50 

 06-93 

 10-16 

 09-62 



10-38 

 11-41 

 14-04 

 10-80 

 09-77 

 08-01 

 08-97 

 07-07 

 07-60 

 09-42 

 12-51 

 16-57 

 21-34 

 21-97 

 20-18 

 17-34 

 15-52 

 13-66 

 11-79 

 10-28 

 10-58 

 10-04 

 10-54 

 10-56 



59-73 

 59-37 

 01-01 

 57-53 

 21-32 

 05-49 

 02-50 

 04-19 



BiFILAR. 



Cor- 

 rected. 



Sc. Div. 



540-9 

 536-6 

 535-9 

 535-8 

 534-4 

 531-3 

 531-9 

 534-1 

 534-4 

 525-7 

 518-0 

 508-9 

 526-3 

 524-8 

 536-6 

 535-8 

 547-1 

 546-5 

 548-0 

 543-3 

 540-2 

 544-3 

 553-1 

 536-4 



537-3 

 533-9 

 535-1 

 535-0 

 535-9 

 535-6 

 531-9 

 529-8 

 525-6 

 517-4 

 513-8 

 519-0 

 521-1 

 531-0 

 540-1 

 547-8 

 550-0 

 545-1 

 552-3 

 554-6 

 547-4 

 546-4 

 541-0 

 539-3 



529-5 

 545-4 

 535-4 

 529-0 

 487-6 

 524-8 

 523-6 

 528-1 



Thermo- 

 meter. 



52-6 

 52-2 

 51-8 

 51-3 

 50-9 

 50-4 

 50-0 

 49-7 

 49-3 

 49-0 

 48-9 

 48-9 

 49-1 

 49-7 

 50-5 

 51-6 

 52-4 

 53-0 

 53-4 

 53-8 

 53-9 

 54-0 

 54-0 

 54-0 



54-0 

 54-0 

 54-0 

 53-9 

 53-8 

 53-7 

 53-5 

 53-5 

 53-5 

 53-5 

 53-5 

 53-6 

 53-9 

 54-2 

 54-5 

 55-0 

 55-5 

 56-0 

 56-4 

 56-6 

 56-5 

 56-1 

 55-7 

 55-3 



52-3 

 52-2 

 521 

 52-0 

 51-9 

 51-7 

 51-6 

 51-5 



Balance. 



Cor- 

 rected. 



Mic. Div 



529-9 

 532-7 

 535-6 

 539-8 

 540-6 

 543-0 

 539-8 

 513-1 

 516-2 

 514-2 

 523-2 

 531-8 

 554-9 

 566-5 

 567-3 

 573-7 

 585-7 

 605-4 

 592-2 

 571-5 

 570-4 

 545-7 

 517-7 

 498-0 



504-1 

 513-5 

 509-2 

 516-4 

 521-5 

 527-8 

 529-4 

 530-7 

 534-1 

 529-1 

 525-8 

 526-7 

 523-7 

 516-3 

 519-6 

 522-3 

 531-2 

 538-3 

 5351 

 533-4 

 537-1 

 531-7 

 524-0 

 523-7 



265-5 

 426-3 

 483-4 

 465-8 

 231-3 

 359-2 

 476-3 

 504-2 



Thermo- 

 meter. 



52-4 

 51-8 

 51-2 

 50-6 

 50-2 

 49-7 

 49-3 

 48-8 

 48-5 

 48-4 

 48-5 

 48-8 

 49-3 

 50-2 

 51-5 

 52-7 

 53-6 

 54-2 

 54-7 

 55-0 

 55-0 

 55-0 

 55-0 

 55-0 



55-0 

 54-9 

 54-7 

 54-6 

 54-5 

 54-3 

 54-2 

 54-2 

 54-1 

 54-1 

 54-2 

 54-4 

 54-7 

 55-0 

 55-5 

 56-0 

 56-4 

 56-7 

 56-9 

 56-9 

 56-5 

 56-0 

 55-5 

 55-2 



52-2 

 52-2 

 521 

 52-0 

 51-9 

 51-7 

 51-5 

 51-3 



o 



H 



H 



H 



H 



H 



H 



W 



W 



B 



W 



W 



W 



W 



W 



W 



W 



W 



H 



H 



H 



H 



H 



B 



B 



B 



B 



B 



B 



B 



B 



H 



H 



W 



H 



H 



H 



H 



H 



H 



H 



H 



B 



B 



B 



B 



B 



W 



W 



H 

 H 

 H 

 H 

 H 

 H 

 W 

 W 



Gottingen 

 Mean Time 

 of Declina- 

 tion Obs. 



27 



h. m. 



21 



22 



23 



28 



30 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 

 29 



6 



7 



8 4 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 







1 



2 



3 



4 



Declina- 

 tion. 



25 



25- 



25 



04-79 

 09-93 

 13-88 

 16-39 

 19-71 

 19-46 

 17-10 

 13-99 

 13-23 

 12-58 

 08-79 

 08-01 

 06-98 

 11-89 

 11-52 

 10-20 



11-41 

 06-97 

 09-10 

 08-61 

 08-48 

 06-66 

 06-73 

 05-45 

 05-97 

 09-17 

 12-25 

 15-89 

 1932 

 19-84 

 17-91 

 15-65 

 13-54 

 12-78 

 11-30 

 09-26 

 10-25 

 11-57 

 11-52 

 11-10 



10-95 

 10-90 

 10-60 

 10-47 

 10-18 

 09-49 

 08-21 

 06-76 

 07-79 

 10-50 

 13-39 

 15-01 

 17-70 

 17-22 

 16-89 



14-17; 



BiFILAR. 



Cor- 

 rected. 



Sc. Div. 



520-4 

 510-7 

 5091 

 516-6 

 518-0 

 530-1 

 542-2 

 548-2 

 550-1 

 548-8 

 541-0 

 544-4 

 540-8 

 536-9 

 538-5 

 538-8 



543-5 

 5360 

 532-4 

 529-8 

 530-7 

 528-7 

 5250 

 526-6 

 522-6 

 519-4 

 522-8 

 526-0 

 526-8 

 525-4 

 524-1 

 526-6 

 534-5 

 540-6 

 546-8 

 541-9 

 540-4 

 538-7 

 537-3 

 536-6 



537-0 

 536-1 

 534-8 

 534-7 

 534-8 

 534-0 

 535-7 

 531-9 

 526-2 

 519-7 

 519-4 

 521-5 

 523-7 

 532-2 

 529-9 

 532-1 



Thermo- 

 meter. 



51-4 

 51-3 

 51-4 

 51-6 

 51-9 

 52-2 

 52-6 

 53-0 

 53-5 

 53-8 

 54-0 

 54-0 

 53-9 

 53-8 

 53-6 

 53-4 



53-2 

 52-9 

 52-6 

 52-3 

 52-0 

 51-8 

 51-7 

 51-6 

 51-6 

 51-5 

 51-7 

 52-2 

 52-7 

 53-4 

 54-1 

 54-8 

 55-4 

 55-8 

 55-9 

 55-8 

 55-7 

 55-5 

 55-2 

 54-9 



54-6 

 54-3 

 54-0 

 53-8 

 53-6 

 53-3 

 53-1 

 52-9 

 52-8 

 52-8 

 53-0 

 53-2 

 53-4 

 53-7 

 54-0 

 54-3 



Balance. 



Cor- 

 rected. 



Mic. Div. 



513-1 

 514-4 

 518-5 

 518-9 

 533-8 

 557-9 

 572-3 

 591-5 

 581-6 

 567-6 

 559-4 

 555-3 

 545-5 

 532-5 

 525-3 

 519-2 



497-9 

 492-8 

 495-1 

 498-7 

 502-1 

 513-7 

 522-9 

 521-9 

 515-4 

 508-7 

 506-4 

 496-8 

 500-8 

 504-3 

 509-1 

 514-4 

 516-7 

 521-7 

 534-0 

 544-0 

 539-8 

 532-5 

 526-4 

 525-7 



525-7 

 525-4 

 527-9 

 529-9 

 530-9 

 533-9 

 536-6 

 539-4 

 534-6 

 528-7 

 523-6 

 516-5 

 511-5 

 508-5 

 522-9 

 529-5 



Thermo- 

 meter. 



51-2 

 51-3 

 51-0 

 51-9 

 52-3 

 52-7 

 53-2 

 53-8 

 54-3 

 54-5 

 54-6 

 54-6 

 54-5 

 54-3 

 540 

 53-6 



53-2 

 52-9 

 52-5 

 52-2 

 51-8 

 51-4 

 51-3 

 51-2 

 51-3 

 51-7 

 52-2 

 52-7 

 53-7 

 54-7 

 55-3 

 56-0 

 56-5 

 56-6 

 56-6 

 56-5 

 56-2 

 55-9 

 55-5 

 55-2 



54-8 

 54-4 

 54-1 

 53-8 

 53-5 

 53-2 

 52-9 

 52-7 

 52-7 

 53-0 

 53-5 

 53-7 

 54-0 

 54-4 

 54-7 

 55-0 





O 



B 



W 



W 



W 



W 



B 



W 



W 



W 



H 



H 



H 



H 



H 



B 



B 



B 



B 



B 



B 



B 



B 



H 



H 



W 



H 



H 



H 



H 



H 



H 



H 



H 



B 



B 



B 



B 



B 



W 



W 



W 



W 



W 



W 



W 



W 



B 



B 



H 



H 



H 



H 



H 



B 



B 



B 



BiFILAR. Observed 2° 



Declination. Magnet untouched, April 2<i — May 8*. 

 after the Decliuation,i=:0-000140. Balance. Observed 3" 



after the Declination, /;=0-000010. 



t Extra Observations made. 



