22 



Teem-Day Obseevations of Magnetometees, 1841. 



Gottingen 

 Mean Time 



of 

 Declination 

 Observation. 



Min. 





 5 

 10 

 15 

 20 

 25 

 30 

 35 

 40 

 45 

 50 

 55 





 5 

 10 

 15 

 20 

 25 

 30 

 35 

 40 

 45 

 50 

 55 





 5 

 10 

 15 

 20 

 25 

 30 

 35 

 40 

 45 

 50 

 55 





 5 

 10 

 15 

 20 

 25 

 30 

 35 

 40 

 45 

 50 

 55 



July 21, 22. 



Declina- 

 tion. 



BiFILAK 



Corrected. 



128-85 

 12909 

 129-29 

 130-43 

 130-60 

 13118 

 130-55 

 13005 

 129-76 

 129-20 

 129-18 

 129-29 



129 

 129 

 129 

 129 

 129 

 129 

 129 

 129 

 129 

 129 

 129 

 130 



Sc. Div. 

 10\ 



11". 



490-6 

 493-0 

 491-9 

 490-5 

 490-9 

 491-1 



12'i. 



Balance 

 Corrected. 



Mic. Div. 



129-80 



497-8 





492-9 



129-52 





130-09 



494-7 



130-35 





130-03 



494-2 



129-98 





129-35 



491-2 



128-76 





128-65 



490-1 



128-56 





-09 



490-9 



-12 





-15 



491-7 



-50 





-29 



491-2 



•12 





-25 



490-9 



•12 





-25 



490-6 



-35 





-52 



492-5 



-05 







13^ 



130-35 



491-6 



129-67 





129-78 



490-4 



129-58 





129-29 



488-7 



128-92 





128-52 



488-5 



129-42 





129-38 



488-6 



129-55 





129-67 



488-2 



129-82 





784-3 

 782-1 

 781-5 

 781-6 

 780-0 



778-8 

 779-7 

 779-4 

 779-9 

 780-4 

 781-4 



783-2 

 781-6 

 780-9 

 780-3 

 779-6 

 778-9 



778-2 

 778-1 

 778-0 

 778-0 

 778-0 

 778-0 



Declina- 

 tion. 



134-86 

 135-30 

 136-20 

 137-41 

 138 37 

 137-61 

 137-21 

 137-20 

 137-23 

 139-07 

 142-77 

 145-59 



129-07 

 127-98 

 127-92 

 126-52 

 126-05 

 126-52 

 125-52 

 125-97 

 125-88 

 126-00 

 126-67 

 126-25 



Sc. Div. 

 14^ 



BiFiLAR Balance 

 Corrected. Corrected. 



Mic. Div. 



130-23 



487-6 





124-95 



481-0 



130-47 





777-7 



126-60 





129-90 



489-4 





126-98 



475-0 



130-00 





777-2 



127-54 





131-20 



486-4 





128-38 



475-4 



132-91 





774-4 



129-52 







481-0 





130-40 



474-0 



133-28 





774-6 



131-73 





134-39 



482-7 





131-17 



469-6 



135-12 





768-2 



131-22 





135-42 



481-3 





131-55 



466-5 



135-62 





760-8 



131-57 





15\ 

 474-9 



474-7 



464-0 



448-2 



444-4 



440-8 





16^. 



146-83 



459-0 



146-80 





145-23 



473-8 



143-27 





141-47 



475-8 



139-67 





137-41 



474-0 



134-50 





132-45 



475-3 



130-92 





13003 



479-1 



129-78 





17^ 

 481-2 



480-1 



485-4 



477-2 



474-9 



472-9 



751-9 

 747-1 

 728-8 

 713-3 

 703-3 

 705-3 



702-1 

 695-3 

 690-6 

 686-3 

 684-6 

 686-1 



687-3 

 686-3 

 686-9 

 688-4 

 694-2 

 697-3 



Declina- 

 tion. 



BiFiLAB Balance 

 Corrected. Corrected. 



132-80 

 132-25 

 130-42 

 128-50 

 127-80 

 127-94 

 128-05 

 126-63 

 127-70 

 129-18 

 130-43 

 130-07 



129-78 

 129-27 

 131-91 

 130-76 

 132-08 

 132-13 

 131-97 

 131-30 

 132-60 

 132-04 

 133-73 

 136-57 



Sc. Div. 

 18^. 



19''. 

 459-9 



462-6 



460-1 



462-1 



463-7 



464-0 



21^ 

 447-3 



443-2 



444-0 



453-2 



448-2 



451-3 





20'^. 



129-13 



471-3 



130-07 





128-75 



468-4 



130-72 





132-48 



468-6 



133-33 





133-37 



467-8 



134-03 





133-60 



461-3 



130-56 





129-78 



457-3 



130-69 





Mic. Div. 



696-7 

 695-6 

 695-9 

 696-8 

 700-3 

 703-4 



707-3 

 708-7 

 713-6 

 716-2 

 718-2 

 719-7 



724-2 

 725-9 

 727-4 

 728-1 

 729-9 

 730-5 



735-2 

 736-0 

 735-8 

 736-4 

 738-1 

 738-2 



Declina- Bifilae Balance 

 TioN. Corrected. Corrected. 



129-47 

 127-95 

 128-98 

 128-27 

 128-96 

 129-15 

 129-23 

 129-50 

 129-78 

 130-35 

 130-13 

 130-76 



Sc. Div. 

 22h. 



23''. 

 466-5 



466-3 



473-0 



471-7 



474-1 



474-8 



136-41 



456-2 



135-23 





134-33 



460-8 



133-72 





133-57 



461-8 



132-84 





131-95 



462-4 



131-25 





130-36 



466-1 



130-18 





130-18 



466-6 



129-09 







0". 



130-72 



473-9 



130-83 





131-27 



4760 



131-42 





131-80 



477-9 



131-95 





132-57 



479-9 



133-22 





133-00 



483-0 



133-95 





134-15 



483-9 



133-85 







1". 



134-10 



484-9 



134-17 





134-00 



478-8 



134-03 





133-93 



475-6 



134-22 





134-02 



478-0 



134-28 





134-20 



478-3 



133-93 





134-23 



476-7 



133-97 





Mic. Div. 



738-3 

 735-7 

 736-1 

 735-8 

 730-1 

 733-9 



734-1 

 733-8 

 735-7 

 737-6 

 739-0 

 740-1 



747-5 

 742-3 

 741-8 

 742-1 

 741-9 

 741-7 



744-8 

 745-3 

 745-8 

 745-2 

 746-1 

 746-7 



Hour, 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 21 



22 



23 



BiFiLAR Thermometer, 



62-3 



62-4 



62-7 



62-5 



62-3 61-8 



61-1 



60-6 



59-9 



59-4 



59-3 59-1 



58-9 



58-6 



58-6 



58-7 



Balance Thermometer, 



62-7 



62-2 



63-0 



62-3 



62-2 62-2 



61-9 



61-2 



60-7 



59-9 



59-7 59-9 



59-7 



59-2 



58-7 



59-0 



During the Terms of 1841, the Bifilar and Balance Magnetometers were observed 2"" 30^ after the corresponding minutes of 

 Declination observation. 



July 21<i — 22'', 1841. The Bifilar and Balance magnets, during this term, had their J^. poles E. and W. respectively ; the opposite 

 direction to that which they afterwards occupied. Increasing readings, however, still indicate increasing force ; the Bifilar readings hav- 

 ing been subtracted from a constant quantity. 



