24 



Hourly Observations of Magnetometers, April 30 — May 5, 1845. 



Obttingen 

 Mean Time 

 of Declina- 

 tion Obs. 



d. Ii. ro. 



30 5 



6 



7 



8 



9 



10 i 



11 5 I 



12 Of 



13 of 



14 of 



15 Of 



16 Ofl 



17 



18 



19 



20 



21 



22 



23 



1 



1 13 



2 



3 



4 



5 



a 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 



2 



Declina- 

 tion. 



25 



25 



12-31 

 11-62 

 11-01 

 13-50 

 11-75 

 10-45 

 03-54 

 07-76 



25 



24 57-35 

 24 56-90 

 09-08 

 08-52 

 07-47 

 14-37 

 09-00 

 09-17 

 15-29 

 13-83 

 16-90 

 1800 

 17-63 

 18-11 

 16-92 

 12-55 

 11-10 

 10-60 

 09-05 

 10-61 

 11-17 

 11-34 

 11-77 

 11-84 



1 







2 







3 







4 







5 







6 







7 







8 







9 







10 







U 







12 







BiFILAR. 



Cor- 

 rected. 



Thermo- 

 meter. 



25 



11-71 



11-14 



10-74 



09-86 



09-03 



07-54 



06-63 



05-52 



07-20 



09-24 



10-85 



12-83 



14-57 



15-05 



14-50 



13-22 



1201 



10-94 



10-01 



09-86 



11-03 



11-03 



10-63 



10-56 



Sc. Div. 



536-7 

 541-7 

 552-2 

 551-5 

 553-7 

 550-6 

 552-8 

 538-1 



518-1 

 533-2 

 507-9 

 516-1 

 534-8 

 524-9 

 529-8 

 532-4 

 522-1 

 522-2 

 526-8 

 530-0 

 529-9 

 537-1 

 534-5 

 534-2 

 542-2 

 546-7 

 550-9 

 543-0 

 538-6 

 538-4 

 537-7 

 536-3 



533-9 

 533-2 

 533-0 

 533-0 

 533-2 

 531-8 

 532-7 

 531-3 

 529-9 

 528-3 

 526-2 

 525-8 

 526-7 

 530-1 

 534-1 

 540-3 

 541-4 

 543-8 

 542-7 

 543-1 

 539-9 

 539-1 

 537-7 

 536-3 



54-7 

 550 

 55-2 

 55-3 

 55-3 

 55-2 

 55-1 

 55-0 



54-8 

 54-7 

 54-5 

 54-4 

 54-2 

 54-0 

 53-9 

 53-8 

 53-8 

 53-8 

 53-9 

 54-3 

 54-6 

 54-7 

 54-8 

 55-1 

 55-4 

 55-7 

 55-9 

 560 

 55-8 

 55-4 

 55-0 

 54-6 



54-1 

 53-7 

 53-3 

 52-9 

 52-5 

 52-2 

 520 

 51-8 

 51-7 

 51-6 

 51-6 

 51-8 

 52-1 

 52-5 

 53-0 

 53-5 

 540 

 54-5 

 54-8 

 54-9 

 54-8 

 54-5 

 54-1 

 53-7 



Balance. 



Cor- 

 rected. 



Thermo- 

 meter. 



Mic. Div. 

 531-7 

 536-8 

 534-6 

 529-8 

 528-7 

 529-4 

 483-7 

 483-0 



409-1 

 255-5 

 256-1 

 153-6 

 367-4 

 442-5 

 447-0 

 475-6 

 483-3 

 491-5 

 500-6 

 504-8 

 519-6 

 534-7 

 549-3 

 567-5 

 571-3 

 561-5 

 558-5 

 548-9 

 537-4 

 530-9 

 527-5 

 526-6 



527-6 

 529-4 

 530-9 

 533-3 

 536-0 

 537-7 

 536-9 

 540-1 

 538-0 

 537-1 

 529-6 

 521-5 

 521-1 

 526-1 

 529-2 

 530-4 

 533-4 

 533-6 

 532-5 

 529-7 

 525-6 

 522-8 

 522-7 

 526-5 



55-4 

 55-7 

 55-8 

 55-8 

 55-8 

 55-7 

 55-4 

 55-5 



55-4 

 55-2 

 55-0 

 54-8 

 54-6 

 54-3 

 54-1 

 540 

 53-9 

 54-2 

 54-5 

 54-8 

 55-2 

 55-3 

 55-4 

 55-9 

 56-3 

 56-4 

 56-5 

 56-5 

 56-1 

 55-5 

 54-9 

 54-3 



53-7 

 53-2 

 52-7 

 52-2 

 51-8 

 51-3 

 51-2 

 51-2 

 51-2 

 51-4 

 51-6 

 52-0 

 52-5 

 53-2 

 54-0 

 54-6 

 55-0 

 55-2 

 55-4 

 55-3 

 550 

 54-5 

 54-0 

 53-4 



B 



W 



W 



W 



W 



W 



H 



H 



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 



Gbttingen 

 Mean Time 

 of Declina- 

 tion Obs. 



h. 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 







1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



Declina- 

 tion. 



4 13 



14 



15 



16 



17 



18 10 



19 



20 



21 



22 



23 



5 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



25 



25 



25 



Bifilar. 



Cor- 

 rected. 



Thermo- 

 meter. 



10-63 

 10-70 

 10-36 

 09-87 

 08-70 

 06-74 

 05-05 

 03-50 

 04-75 

 07-47 

 10-78 

 13-37 

 15-01 

 15-67 

 13-90 

 11-91 

 10-18 

 10-43 

 10-30 

 10-54 

 10-77 

 11-08 

 11-25 

 11-08 



11-10 

 10-74 

 10-63 

 10-90 

 08-18 

 07-54 

 06-14 

 05-96 

 06-57 

 1006 

 11-81 

 14-30 

 15-89 

 15-76 

 14-77 

 13-46 

 12-13 

 10-28 

 09-76 

 09-80 

 09-80 

 11-71 

 12-22 

 12-08 



12-25 

 11-46 

 11-27 

 10-51 

 08-97 

 06-19 

 04-55 

 04-51 



Sc. Div. 



536-6 

 536-9 

 533-9 

 535-4 

 534-6 

 531-9 

 531-3 

 528-2 

 527-6 

 526-5 

 523-7 

 520-3 

 524-5 

 530-1 

 532-2 

 536-5 

 5410 

 544-4 

 545-9 

 545-6 

 541-6 

 543-3 

 541-7 

 543-1 



539-8 

 540-7 

 540-0 

 5400 

 537-3 

 535-3 

 531-3 

 527-5 

 523-5 

 521-0 

 521-6 

 524-4 

 528-4 

 535-0 

 536-8 

 541-7 

 543-6 

 548-4 

 550-2 

 547-5 

 543-8 

 542-1 

 540-9 

 539-2 



539-1 

 537-6 

 536-6 

 536-7 

 535-9 

 532-1 

 529-7 

 527-7 



Balance. 



Cor- Thermo- 

 rected. meter. 



53-3 

 52-8 

 52-4 

 52-0 

 51-7 

 51-3 

 50-9 

 50-7 

 50-5 

 50-4 

 50-4 

 50-5 

 50-8 

 51-1 

 51-5 

 51-9 

 52-3 

 52-8 

 53-3 

 53-7 

 53-7 

 53-6 

 53-2 

 52-8 



50-5 

 50-1 

 49-7 

 49-2 

 48-8 

 48-3 

 47-9 

 47-7 

 47-5 

 47-4 

 47-4 

 47-5 

 47-7 

 48-1 

 48-5 

 48-9 

 49-3 

 49-9 

 50-2 

 50-4 

 50-5 

 50-3 

 50-0 

 49-6 



49-3 

 49-0 

 48-7 

 48-4 

 48-1 

 47-9 

 47-7 

 47-6 



Mic. Div. 



525-9 

 527-3 

 529-4 

 529-5 

 530-9 

 536-8 

 541-3 

 537-1 

 524-8 

 522-2 

 520-1 

 521-0 

 518-9 

 527-0 

 526-3 

 528-2 

 527-5 

 532-3 

 532-8 

 529-3 

 525-3 

 523-1 

 521-7 

 520-2 



530-4 

 532-4 

 534-2 

 535-7 

 538-5 

 545-1 

 548-4 

 548-7 

 543-3 

 544-7 

 545-2 

 541-9 

 5.34-3 

 533-6 

 535-7 

 539-4 

 546-2 

 555-5 

 558-6 

 556-0 

 553-9 

 543-1 

 538-2 

 537-5 



52-8 

 52-3 

 51-8 

 51-3 

 50-8 

 50-4 

 50-1 

 500 

 49-9 

 50-0 

 50-2 

 50-4 

 50-8 

 51-4 

 52-0 

 52-5 

 53-0 

 53-5 

 54-0 

 54-2 

 54-0 

 53-7 

 53-1 

 52-5 



49-9 

 49-5 

 49-0 

 48-5 

 48-0 

 47-4 

 47-2 

 47-0 

 46-8 

 47-0 

 47-2 

 47-5 

 48-0 

 48-6 

 49-2 

 49-6 

 50-0 

 50-3 

 50-4 

 50-5 

 50-5 

 50-1 

 49-7 

 49-3 



O 



538-0 



48-9 



540-0 



48-5 



542-0 



48-2 



544-6 



47-9 



548-7 



47-6 



554-7 



47-4 



552-5 



47-2 



548-7 



47-2 



w 

 w 

 w 

 w 

 w 

 w 



B 



B 



H 



H 



H 



B 



H 



B 



H 



H 



H 



W 



W 



W 



W 



W 



H 



H 



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 



Bifilar. 



Declination. Jlagnet untouched, April 2^ — May 8>^. 

 Observed 2"> after the Declination. /c=0-000140. Balance. Observed 3"> after the Declination, it=0-000010. 



t Extra Observations made. 



