298 



Daily Observations of Magnetometees, April 6 — 16, 1846. 



Getting 



en 





BlFILAR. 



Balance. 





Getting 



en 







BiFILAK. 



Balance. 





Mean Time 

 of Declina- 



Declina- 

 tion. 



Cor- 



Thermo- 



Cor- 



Thermo- 



CO c 



Mean Time 

 of Declina- 



Declina- 

 tion. 



Cor- 



Thermo- 



Cor- 



Thermo- 





tion Obs. 





rected. 



meter. 



rected. 



meter. 



rU 1— 1 



O 



tion Obs. 







rected. 



meter. 



rected. 



meter. 



5" 



d. h. 



m. 







Sc. Div. 







Mic. Div. 



o 





d. h. 



in. 



o 



1 



Sc. Div. 







Mic. Div. 









6 18 







25 01-66 



535-9 



42-1 



260-7 



42-2 



W 



11 2 







25 



17-42 



533-0 



44-5 



354-1 



45-2 



U 



20 







01-86 



543-8 



41-7 



342-1 



41-8 



w 



4 









13-69 



540-9 



45-3 



368-3 



46-0 



W 



22 



Of 



15-39 



516-8 



41-4 



366-9 



41-7 



H 



6 









09-87 



568-7 



46-0 



367-4 



46-7 



H 



23 







10-31 



538-1 



41-6 



361-3 



41-6 



W 



7 









02-99 



555-1 



46-3 



389-4 



47-0 



H 



7 







12-80 



538-0 



41-7 



366-1 



41-7 



H 



8 









0515 



561-2 



46-4 



380-3 



47-2 



H 



1 







13-25 



544-4 



42-0 



374-4 



43-0 



H 



10 









07-78 



555-8 



46-6 



361-0 



47-2 



H 



2 







13-16 



541-2 



42-4 



376-4 



43-3 



H 





















4 







06-51 



552-8 



42-8 



391-2 



43-7 



W 



12 18 







25 



02-55 



549-4 



50-2 



338-0 



50-2 



W 



6 







25 06-03 



551-0 



43-3 



404-4 



44-2 



H 



20 







24 



59-98 



547-1 



50-0 



337-9 



50-0 



W 



7 



Of 



24 53-17 



561-7 



43-4 



4190 



44-3 



H 



22 







25 



03-35 



532-2 



50-0 



336-9 



50-0 



H 



8 







25 0219 



549-6 



43-5 



409-4 



44-5 



H 



23 









05-69 



533-4 



50-0 



332-3 



50-3 



W 



10 







03-50 



540-6 



43-4 



384-3 



44-2 



H 



13 

 1 





 





13-30 

 16-52 



522-5 

 541-3 



50-1 

 50-4 



331-6 

 329-7 



50-5 

 51-0 



H 

 H 



18 







25 07-96 



550-3 



42-6 



301-1 



430 



W 



2 









16-75 



545-3 



50-8 



345-9 



51-7 



H 



20 







04-64 



538-3 



42-5 



350-8 



42-9 



W 



4 









17-89 



559-5 



52-0 



369-8 



52-9 



W 



22 







06-26 



530-1 



42-4 



375-1 



43-0 



H 



6 









16-28 



5670 



53-0 



426-0 



54-0 



H 



23 







06-53 



531-9 



42-5 



373-1 



43-2 



W 



7 



Of 





13-72 



555-9 



53-4 



470-8 



54-5 



H 



8 







10-27 



533-0 



42-7 



370-9 



43-5 



H 



8 









02-80 



553-9 



53-4 



452-7 



54-7 



H 



1 







13-32 



528-6 



43-0 



376-1 



43-9 



H 



10 









10-06 



553-3 



53-2 



266-9 



54-0 



H 



2 







15-44 



537-0 



43-3 



379-8 



44-5 



H 















1 







4 







10-63 



549-4 



44-3 



386-3 



45-3 



W 



18 







25 



02-40 



546-5 



51-7 



332-0 



51-7 



in 



6 







06-79 



564-4 



44-8 



390-1 



45-5 



H 



20 









00-60 



543-8 



51-2 



341-7 



51-0 



^ 



7 







25 03-67 



557-4 



45-0 



399-9 



45-6 



H 



22 









01-54 



535-9 



50-8 



341-9 



50-8 



1^ 



8 







24 59-64 



550-2 



44-9 



395-9 



45-5 



H 



23 









05-98 



533-1 



50-9 



341-4 



51-0 



1 



10 







25 06-19 



547-4 



44-7 



379-8 



45-2 



H 



14 

 1 













10-99 

 16-32 



533-1 

 5310 



51-2 

 51-5 



343-1 

 344-6 



51-7 

 52-3 



H 

 B 



18 







25 04-48 



544-3 



42-9 



354-1 



42-7 



W 



2 









16-91 



536-8 



51-8 



' 348-8 



52-7 



H 



20 







00-96 



545-4 



42-3 



365-2 



42-3 



W 



4 









14-51 



561-3 



52-8 



i 358-8 



54-0 



B 



22 







02-08 



529-3 



41-8 



364-7 



41-9 



H 



6 









07-35 



551-6 



54-0 



360-5 



55-0 



B 



23 







05-35 



526-0 



41-9 



367-8 



42-3 



W 



7 









06-07 



559-5 



54-2 



1 353-9 



55-2 



B 



9 







08-83 



526-1 



42-2 



370-2 



43-2 



H 



8 



Of 



25 



03-93 



562-2 



54-4 



370-1 



55-2 



1 



1 







13-16 



532-1 



42-7 



368-8 



44-0 



H 



10 



Of 



24 



48-27 



554-6 



54-6 



342-6 



55-4 



B 



2 







14-15 



540-3 



43-7 



370-7 



45-0 



H 





















4 







11-34 



553-2 



45-2 



374-3 



46-4 



W 



18 







25 



0104 



552-7 



52-6 



332-6 



52-4 



t 



6 







05-90 



553-6 



46-3 



.375-7 



47-5 



H 



20 









01-49 



548-9 



52-0 



333.7 



51-6 



^ 



7 







0503 



557-5 



46-6 



372-0 



47-6 



H 



22 









01-68 



530-2 



51-4 



343-6 



50-9 



i B 



8 







04-51 



553-9 



46-8 



371-0 



47-7 



H 



23 









05-35 



529-3 



51-2 



342-9 



50-8 



is 



10 







04-95 



553-1 



46-7 



366-5 



47-5 



H 



15 



1 





 





13-23 

 15-88 



533-7 

 530-3 



51-1 

 51-8 



338-9 

 ! 339-7 



50-7 

 50-5 



B 



18 







25 05-42 



548-7 



44-3 



355-5 



44-0 



W 



2 









17-83 



546-3 



50-7 



342-7 



50-4 



B 



20 







02-59 



547-4 



43-7 



363-9 



43-4 



W 



4 









16-15 



5400 



50-4 



370-8 



501 



1 



22 







02-13 



535-2 



43-4 



370-0 



43-7 



H 



6 









09-08 



554-8 



50-1 



373-3 



49-7 



H 



23 







05-53 



531-1 



43-5 



367-1 



44-2 



W 



7 









06-06 



561-4 



50-0 



378-2 



49-7 



H 



10 







08-65 



533-8 



440 



363-8 



45-2 



H 



8 







25 



00-87 



551-4 



49-7 



384-3 



49-5 



H 



1 







1112 



537-8 



44-8 



358-7 



46-2 



H 



10 







24 



59-90 



544-0 



49-5 



374-6 



49-3 



H 



2 







13-22 



546-1 



45-7 



354-2 



47-2 



H 





















4 







12-96 



562-4 



47-3 



360-1 



48-5 



W 



18 







25 



04-04 



549-7 



48-1 



302-4 



47-8 



W 



6 







05-83 



570-0 



48-3 



399-7 



49-5 



H 



20 









07-32 



546-4 



47-8 



278-0 



47-7 



"W 



7 







07-84 



573-8 



48-8 



411-7 



49-7 



H 



22 









08-82 



515-6 



47-7 



321-6 



47-9 



H 



8 



Of 



02-37 



548-8 



49-0 



443-8 



50-0 



H 



23 



of 





08-82 



505-9 



47-8 



i 340-3 



48-0 



"W 



10 







05-70 



556-1 



49-0 



383-2 



49-5 



H 



16 

 1 





 





1502 

 19-10 



524-3 

 529-4 



48-0 

 48-4 



: 409-4 

 394-0 



48-5 

 490 



H 

 H 



18 







25 06-64 



536-8 



45-6 



261-0 



45-3 



W 



2 









19-51 



548-6 



48-7 



412-5 



49-5 



H 



20 







03-25 



548-1 



44-9 



291-1 



44-5 



W 



4 



of 





15-94 



566-2 



49-7 



490-5 



50-3 



W 



22 







05-72 



524-8 



44-3 



325-7 



44-2 



H 



6 



Of 



25 



10-80 



560-2 



50-6 



501-2 



51-5 



H 



23 



5 



08-28 



523-0 



44-2 



328-8 



44-3 



W 



7 



Of 



24 



59-32 



591-9 



51-1 



458-3 



52-0 



H 



11 







11-00 



526-0 



44-2 



339-1 



44-5 



H 



8 



Of 



25 



00-53 



557-6 



51-3 



427-1 



52-0 



H 



1 







14-37 



527-1 



44-3 



347-6 



44-8 



H 



10 



Of 



24 



44-73 1 



585-5 



51-6 



253-9 



52-5 



H 



Declina 



TiON. Torsion remov 



ed ; Apr. 



131 22^, + 3° ; 



141 8i 



N + Sr ; 



141 



20S 



-f- 34°. Effect of + 10° c 



f Torsion, =-0'-i 



ii. 



BiFlLAR 



. Observed 2°» after t 



he Declii 



lation, ^=000013 



5. 



Balance 



Observed 3™ after the Declir 



ation, *=0-000010. 



Apr 



. 13d 



23i>— 141 7h. Magne 



t with th( 



i short scale in the 



declir 



ometer box ; ] 



41 7^1" the deflecting bar vibrat 



ed in the declinometer 



box. 



See J 



'introduction, p. xvi. 



















t E 



xtra 



Observations made. 





















