20 



Hourly Observations of Magnetometers, April 8 — 14, 1845. 



Gbttingen 

 Mean Time 

 of Declina- 

 tion Obs. 



d. h. m. 



8 13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 



9 

 1 

 2 

 3 

 4 

 5 

 6 

 7 





 

 

 

 

 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 

 10 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



Declina- 

 tion. 



25 



25 



25 



1100 

 10-94 

 10-70 

 10-70 

 10-27 

 1000 

 08-65 

 06-83 

 05-67 

 07-58 

 10-97 

 14-71 

 17-98 

 19-64 

 17-76 

 15-64 

 13-96 

 11-27 

 08-95 

 08-01 

 10-21 

 10-21 

 10-40 

 11-14 



10-43 

 10-16 

 10-23 

 10-07 

 10-16 

 09-62 

 08-79 

 08-06 

 06-88 

 07-65 

 10-68 

 14-55 

 18-25 

 19-22 

 18-01 

 15-69 

 14-68 

 12-31 

 11-81 

 11-68 

 11-52 

 11-34 

 11-57 

 10-77 



1117 

 11 03 

 10-88 

 10-70 

 10-09 

 09-44 

 08-16 

 06-37 



BiFILAR. 



Balance. 



§ - 



Cor- 



Thermo- 



Cor- 



Thermo- 



rected. 



meter. 



rected. 



meter. 



O 



Sc. Div. 



o 



Mic. Div. 



o 



537-7 



46-4 



546-3 



45-7 



w 



538-5 



45-9 



549-2 



45-2 



w 



538-5 



45-4 



552-9 



44-6 



w 



539-4 



44-9 



554-2 



44-0 



w 



539-4 



44-3 



556-0 



43-3 



w 



540-4 



43-7 



559-4 



42-7 



w 



538-6 



43-1 



564-0 



42-0 



E 



536-4 



42-7 



568-6 



41-6 



B 



528-6 



42-3 



570-7 



41-4 



H 



521-0 



42-0 



566-9 



41-4 



H 



518-9 



42-0 



562-1 



41-9 



H 



522-7 



42-3 



558-1 



42-9 



B 



5290 



43-0 



548-8 



44-2 



H 



537-5 



44-3 



549-5 



45-5 



B 



541-7 



45-4 



552-8 



46-7 



H 



541-7 



46-4 



543-6 



47-4 



B 



548-3 



47-1 



555-7 



48-3 



H 



545-1 



47-8 



562-3 



48-7 



W 



544-8 



48-3 



564-8 



48-9 



W 



548-8 



48-5 



552-6 



48-9 



W 



543-7 



48-4 



546-8 



48-5 



W 



543-7 



48-1 



540-8 



48-1 



W 



544-2 



47-8 



537-7 



47-7 



H 



552-6 



47-4 



516-5 



47-3 



H 



542-4 



47-0 



516-6 



47-0 



H 



540-1 



46-7 



525-0 



46-6 



H 



539-7 



46-4 



533-3 



46-2 



H 



540-4 



46-0 



532-1 



45-8 



H 



540-6 



45-7 



540-9 



45-4 



H 



541-5 



45-4 



543-1 



45-0 



H 



539-1 



45-0 



544-9 



44-5 



W 



536-7 



44-7 



549-0 



44-1 



W 



532-5 



44-4 



549-4 



43-8 



B 



526-7 



44-1 



545-4 



43-7 



W 



523-4 



44-0 



534-1 



43-8 



W 



526-8 



43-9 



526-4 



43-9 



W 



530-8 



43-9 



521-1 



43-9 



W 



535-9 



43-9 



522-7 



44-0 



W 



543-3 



44-0 



528-9 



44-1 



W 



543-0 



44-0 



536-1 



44-2 



w 



540-9 



44-0 



545-2 



44-2 



w 



543-2 



44-0 



550-2 



44-2 



H 



544-1 



44-0 



547-0 



44-0 



H 



545-3 



43-9 



543-6 



43-7 



H 



543-6 



43-7 



544-0 



43-5 



H 



543-2 



43-5 



543-9 



43-3 



H 



543-9 



43-3 



542-0 



43-1 



B 



544-3 



43-1 



542-9 



42-9 



B 



542-5 



42-9 



541-9 



42-7 



B 



541-1 



42-7 



543-9 



42-5 



B 



540-8 



42-5 



545-0 



42-2 



B 



540-6 



42-3 



546-8 



42-0 



B 



539-9 



421 



548-4 



41-7 



B 



540-3 



41-9 



551-4 



41-5 



B 



539-8 



41-7 



553-5 



41-3 



H 



537-2 



41-5 



557-9 



41-1 



H 



Gbttingen 



Mean Time 



of Declina- 



tion Obs. 



d. h. 



ni. 



10 21 







22 







23 







11 







1 







2 







3 







4 







5 







6 







7 







8 







9 







10 







11 







12 







13 







14 







15 







16 







17 







18 







19 







20 







21 







22 







23 







12 







1 







2 







3 







4 







5 







6 







7 







8 







9 







10 







11 







12 







13 13 



3t 



14 







15 



O' 



16 



Of 



17 



0- 



18 



O' 



19 







20 







21 







22 







23 







14 







1 







2 







3 







4 



ot 



Declina- 

 tion. 



25 



25 



24 



24 

 24 

 24 

 25 



04-86 

 06-07 

 09-79 

 14-15 

 18-10 

 19-81 

 19-08 

 17-09 

 14-46 

 12-62 

 11-37 

 11-17 

 12-08 

 07-13 

 09-27 

 1009 



11-03 

 11-00 

 10-87 

 10-20 

 09-79 

 09-08 

 08-14 

 05-77 

 05-32 

 06-86 

 10-67 

 14-35 

 18-45 

 20-67 

 18-77 

 16-53 

 14-20 

 12-15 

 10-68 

 10-70 

 09-27 

 10-36 

 10-90 

 10-88 



52-40 

 59-59 

 13-32 

 47-20 

 06-46 

 03-00 

 07-38 

 03-23 

 06-59 

 08-14 

 10-74 

 15-78 

 20-12 

 20-69 

 20-50 

 14-50 



Bifilar. 



Cor- 

 rected. 



Thermo- 

 meter. 



Sc. DiT. 



531-1 

 524-9 

 521-9 

 522-1 

 525-8 

 532-6 

 534-2 

 536-3 

 543-1 

 541-6 

 546-5 

 545-3 

 544-8 

 545-6 

 541-3 

 542-3 



541-6 

 541-6 

 540-1 

 540-4 

 540-2 

 541-8 

 541-3 

 538-7 

 532-1 

 526-0 

 523-3 

 543-2 

 529-0 

 535-9 

 536-9 

 539-9 

 544-2 

 542-8 

 545-2 

 545-2 

 548-1 

 543-0 

 542-2 

 541-3 



453-0 



427-5 



291- ? 



528-0 



524-5 



537-0 



531-0 



539-8 



522-7 



526-2 



531-2 



517-8 



525-2 



517-6 



533-1 



538-6 



41-3 

 41-2 

 41-2 

 41-4 

 41-7 

 420 

 42-4 

 42-8 

 43-0 

 43-2 

 43-3 

 43-3 

 43-2 

 43-0 

 42-7 

 42-4 



42-0 

 41-6 

 41-2 

 40-8 

 40-4 

 40-0 

 39-6 

 39-3 

 39-0 

 38-8 

 38-8 

 39-0 

 39-4 

 40-1 

 40-7 

 41-2 

 42-1 

 42-7 

 43-0 

 43-3 

 43-4 

 43-4 

 43-3 

 43-2 



43-2 

 42-9 

 42-6 

 42-4 

 42-3 

 42-2 

 42-1 

 42-1 

 42-0 

 421 

 42-3 

 42-5 

 42-7 

 42-9 

 43-0 

 43-2 



Balance. 



Cor- 

 rected. 



Thermo- 

 meter. 



Mic. Div. 



557-9 

 554-0 

 553-2 

 540-9 

 533-8 

 536-0 

 542-6 

 547-0 

 5520 

 557-1 

 551-4 

 549-4 

 550-1 

 549-6 

 547-7 

 543-5 



542-4 

 544-2 

 546-8 

 5471 

 549-6 

 551-2 

 555-6 

 558-2 

 561-1 

 559-6 

 557-0 

 555-3 

 548-3 

 544-2 

 549-6 

 552-0 

 556-9 

 561-3 

 560-0 

 559-2 

 552-2 

 552-0 

 547-9 

 543-9 



180-2 

 216-0 

 -4-5 

 288-6 

 448-2 

 499-9 

 518-5 

 509-6 

 523-7 

 530-8 

 525-0 

 531-8 

 532-9 

 560-8 

 569-1 

 650-6 



41 

 41 

 41 

 41 

 42 

 42 

 42 

 43 

 43 

 43 

 43 

 43 

 43 

 43 

 42 

 42 



41 

 41 

 40 

 40 

 39 

 39 

 38 

 38 

 38 

 38 

 38 

 39 

 40 

 40 

 41 

 42 

 43 

 43 

 43 

 44 

 44 

 44 

 44 

 43 



43 

 43 

 42 

 42 

 42 

 42 

 42 

 42 

 42 

 42 

 42 

 43 

 43 

 43 

 43 

 43 



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

 Bifilar. Observed 2" after the Declination, fc=0-000140. Balance. Observed 3" after the Declination, ^=0-000010. 



t Extra Observations made. 



