



Extra Observations of 



Magnetometers, April 30 — July 24, 



1845. 





107 



FILAR 



Balance 



Gbtt. 







Bl 



FILAR 



Balance 



Gbtt. 







Bifilar 



Balance 1 



■rected. 



Corrected. 



Mean 

 Time. 



Declination. 



Corrected. 



Corrected. 



Mean 

 Time. 



Declination. 



Corrected. 



Coi 



rected. 



Sc. Div. 



Min. 



Mic.Div. 



a. 



h. 



Min. 







Min. 



Sc. Div. 



Min. 



Mic. Diy. 



d. 



h. 



Min. 



c 



Min. 



Sc. Div. 



Min. 



Mic. Div. 



513-0 



28 



292-9 



18 



14 



35 



25 03-67 



37 



530-0 



38 



385-9 



4 



12 



10 



25 06-73 



12 



541-1 



13 



473-1 



508-7 



33 



295-2 







45 



03-02 



47 



531-9 



48 



398-0 







20 



08-28 



22 



541-6 



23 



472-8 



509-8 



38 



291-6 



18 



15 







09-32 



2 



533-4 



3 



403-5 







40 



10-20 



42 



542-8 



43 



470-2 



508-3 



43 



288-5 







15 



17-60 



17 



537-9 



18 



395-5 



4 



13 







09-46 



2 



541-1 



3 



469-7 



507-2 

 506-3 



48 

 53 



280-9 

 275-6 







25 

 35 



17-94 

 17-60 



27 

 37 



542-1 

 546-9 



28 

 38 



378-3 

 367-9 























7 



12 







25 11-14 



2 



546-0 



3 



454-5 



505-2 



58 



266-6 







45 



1702 



47 



538-6 



48 



364-2 







10 



13-32 



12 



546-0 



13 



450-7 



507-9 



3 



256-1 



18 



16 







20-62 



2 



508-3 



3 



363-7 







20 



12-78 



22 



547-5 



23 



442-5 



503-6 



13 



228-8 







10 



25-06 



12 



502-6 



13 



351-2 







35 



14-06 



37 



548-0 



38 



432.7 



i 498-2 



18 



215-9 







20 



27-75 



22 



506-0 



23 



319-6 







40 



14-85 



42 



548-1 



43 



428-8 



j 491-8 



23 



194-5 







25 



23-19 



27 



513-7 



28 



303-8 







45 



15-78 



47 



544-4 



48 



425-7 



i 492-8 



28 



185-3 







30 



18-61 



32 



514-1 



33 



287-9 







50 



16-41 



52 



542-7 



53 



426-2 



■ 498-5 



33 



167-4 







35 



13-27 



37 



520-4 



38 



287-6 







55 



17-53 



57 



540-9 



58 



417-4 



■ 517-7 



38 



175-4 







40 



10-60 



42 



521-3 



43 



284-7 



7 



13 







18-50 



2 



540-0 



3 



412-8 



523-4 



43 



148-6 







45 



09-82 



47 



520-8 



48 



291-1 







5 



16-92 



7 



539-2 



8 



408-0 



. 511-6 



48 



132-3 



18 



17 







10-11 



2 



526-7 



3 



379-0 







10 



1601 



12 



537-5 



13 



405-4 



510-9 



53 



127-2 







15 



08-19 



17 



524-1 



18 



369-0 







20 



13-12 



22 



5.37-9 



23 



401-7 



513-4 



58 



134-4 







45 



07-69 



47 



528-3 



48 



432-3 







46 



08-48 



47 



539-0 



48 



409-5 



516-1 



3 



153-6 



18 



18 







08-14 



2 



527-7 



3 



451-1 



7 



14 







08-66 



2 



539-4 



3 



419-7 



522-3 



537-8 



8 

 13 



172-4 

 202-5 











27 

 9 



523-0 

 522-6 



28 

 10 



477-2 

 495-7 



















18 



19 



8 



08-39 



8 



8 







25 11-46 



2 



552-8 



3 



496-2 



! 539-8 



28 



249-2 







20 



08-11 



22 



523-0 



23 



497-9 







10 



12-65 



12 



542-7 



13 



504-8 



533-7 



43 



309-9 



18 



20 







08-19 



2 



525-6 



3 



505-1 







15 



12-69 



17 



5.38-0 



18 



507-2 



534-8 



3 



367-4 























25 

 30 

 40 



09-62 



27 



32 



1 42 



545^8 



28 



506-7 







20 



13 





 31 



25 07-67 

 06-66 



2 

 32 



535-7 

 535-2 



3 

 33 



495-6 

 490-3 







0902 

 08-85 



550-8 

 552-2 



33 

 43 



505-5 



: 550-4 



3 



492-9 







503-7 



: 549-7 



23 



480-8 



20 



14 







07-67 



2 



534-4 



3 



482-3 



8 



9 







09-51 



2 



552-3 



3 



500-1 



; 544-6 

 ; 549-7 



43 

 3 



472-8 

 461-1 



















8 



17 







25 16-82 



2 



526-3 



3 



472-1 



22 



10 







25 02-99 



2 



538-6 



3 



534-8 











10 

 20 



03-60 

 05-99 



12 

 22 



542-3 

 540-9 



13 

 23 



529-6 

 527-9 







10 

 15 



18-87 

 20-35 



12 

 17 



527-3 

 527-9 



13 



18 



467-0 

 460-5 



: 578-4 



3 



495-7 











3 572-4 



13 



502-1 



22 



11 







10-43 



2 



540-0 



3 



522-0 







20 



20-52 



22 



529-9 



23 



454-8 



'i 563-0 



18 



50Q-4 























30 

 40 



1Q-S4 



32 

 42 



531-3 

 533-0 



33 

 43 



442-7 



3 563-5 



23 



513-1 



29 



13 







25 13-56 



2 



544-8 



3 



497-3 







18-34 



433-2 



'., 560-1 



28 



520-1 







35 



10-18 



37 



545-2 



38 



492-9 



8 



18 







15-34 



2 



536-7 



3 



418-3 



i; 563-7 



33 



524-8 



29 



14 







09-89 



2 



544-5 



3 



491-8 







32 



10-23 



33 



541-2 



34 



423-0 



^ 562-1 



:! 528-6 

 fj 533-4 



43 

 3 



18 



534-3 



















8 



19 







05-99 



2 



539-5 



3 



436-1 



5fi5-Q 



* 



1 





 30 



25 22-15 



22-27 



2 

 32 



550-3 

 551-9 



3 

 33 



497-4 

 500-3 



575-1 





17 



2 







25 21-23 



2 



540-6 



3 



467-2 



1 539-4 



38 



573-2 



4 



2 







15-12 



2 



535-4 



3 



511-1 







40 



21-26 



42 



541-2 



43 



468-5 



; 543-3 



3 



567-5 



4 



4 





 15 



19-51 

 20-58 



2 

 17 



533-7 

 551-1 



3 

 18 



553-1 



548-5 



17 



3 







20-89 



2 



543-0 



3 



467-7 



' 







i 5651 



3 



505-0 







25 



19-01 



27 



562-1 



28 



547-1 



17 



8 







25 11-12 



2 



554-2 



3 



484-2 



551-8 



23 



512-6 







35 



18-13 



37 



562-7 



38 



550-9 







31 



07-87 



32 



554-3 



33 



486-4 



552-7 



3 



517-8 







45 



17-83 



47 



557-7 



48 



559-7 



17 



9 







08-80 



2 



553-7 



3 



486-2 









4 



5 







19-12 



2 



547-9 



3 



571-8 

























540-9 



3 



445-1 







30 



15-11 



32 



551-9 



33 



577-2 



17 



12 







25 07-00 



2 



544-5 



3 



4690 



536-1 



13 



416-4 







45 



14-64 



47 



552-1 



48 



577-8 







30 



08-14 



32 



543-8 



33 



468-8 



' 523-8 



18 



403-7 



4 



6 







15-31 



2 



554-4 



3 



580-0 



17 



13 







08-32 



2 



542-7 



3 



469-8 



\ 505-3 



r 487-9 



23 



28 



390-7 

 371-9 











2 

















2 









8 



13 







25 07-79 



539-9 



3 



479-5 



18 



13 







25 08-38 



543-2 



3 



439-2 



: 498-8 



33 



361-7 







20 



04-98 



22 



539-8 



23 



473-6 







15 



06-06 



17 



539-8 



18 



444-5 



' 516-0 



38 



367-0 







30 



04-76 



32 



538-9 



33 



472-1 







20 



05-42 



22 



538-5 



23 



445-8 



518-3 



43 



372-6 



8 



14 







05-22 



2 



531-0 



3 



475-6 



18 



14 







07-38 



2 



537-5 



3 



452-3 



1 514-8 



48 



377-0 



































511-6 



53 



375-9 



10 



8 







25 07-05 



2 



560-1 



3 



536-6 



18 



21 



3 



25 12-04 



4 



529-2 



5 



470-5 



517-9 



58 



371-0 







15 



09-20 



17 



557-6 



18 



540-3 







15 



13-52 



17 



530-5 



18 



467-1 



1 522-7 



3 



372-8 







30 



10-20 



32 



551-7 



33 



540-8 







32 



12-87 



33 



528-1 



34 



463-5 



.| 534-9 



13 



374-0 



10 



9 







11-34 



2 



547-9 



3 



536-8 



18 



22 







11-03 



2 



529-4 



3 



457-1 



'I 535-1 

 1 533-8 



18 

 23 



373-4 



377-8 



































t4 



12 







25 04-82 



2 



548-0 



3 



471-1 



24 



11 







25 08-93 



2 



534-5 



3 



48M 



BiFILA 



.1 



R. kz 



=0-000140. 





Balanci 



:. 1-= 



=0-000010. 







j* June 4<i 1^. 









t July 4'! I2h. 















jJuly IT^i 8'' 0". The declinat 



ion a 



nd bifi 



lar magnets vibrati 



ng slightly and irregula 



riy; 



the d( 



iclinat 



ion changing its mean positic 



m to a 



small 



Bj;ent ; it has gradually gone ea 



stwar 



d till 



30" ; the bifilar ba 



3 been nearly stationary 















