54 



Extra Observations of Magnetometers, July 2. 1842. 



Gottingen 

 Mean Time. 



Declination. 



Bifilar. 



Balance. 



Gottingen 

 Mean Time. 



Declination. 



Bifilar. 



Balance. 



Min. 



of 



Obs. 



Reading 

 Reduced. 



Min. 



of 



Obs. 



Reading 



Cor- 

 rected. 



Min. 



of 



Obs. 



Reading 



Cor- 

 rected. 



iMin. 

 of 



Obs. 



Reading 

 Reduced. 



Min. 



of 



Obs. 



Reading 



Cor- 

 rected. 



Min. 



of 



Obs. 



Reading 



Cor- 



rected. 



d. h. 



m. 



' 



m. 



So. Div, 



m. ' Mic. Div. 



a. h. 



11! 



' 



m. 



Sc. Div. 



m. 



Mic. Div. 



July 2 6 



6 



132.13 



7 



576-8 



8 



983 



July 2 7 



51 



122-47 



52 



572-4 



53 



883 





9 



133-53 



10 



588-0 



11 



993 











(574-1) 













, (591-0) 









54 



122-73 



55 



575-7 



56 



865 









12 



596-3 



13 



1000 





57 



125-55 



58 



573-5 



59 



863 





14 



13400 



15 



586-6 







July 2 8 







126-42 



I 



572-6 



2 



862 









16 



588-0 

 (589-5) 



17 



1011 





6 

 12 



130-12 

 128-43 



8 

 14 



560-7 

 547-9 



10 \ 874 

 16 i 869 





18 



130-32 



19 



588-0 



20 



1012 





18 



129-30 



20 



545-6 



22 



866 









21 



588-2 









24 



129-37 



26 



541-9 



28 



858 









22 



587-1 



23 



1006 





30 



129-85 



32 



538-4 



34 



863 





24 



129-17 



25 



582-6 



26 



996 





36 



127-70 



38 



537-4 



40 



860 









27 



570-2 









42 



124-82 



44 



534-2 



46 



844 









28 



568-5 



29 



1002 





48 



125-22 



50 



526-7 



52 



815 











(572-4) 









54 



128-90 



56 



504-9 



58 i 751 





.30 



130-72 



31 



604-7 



32 



1047 



July 2 9 







125-82 



1 



480-2 



2 ' 704 









33 



602-0 









3 



125-08 



4 



473-0 



5 689 









34 



597-3 



35 



1044 





6 



122-93 



7 



473-0 



8 1 684 





36 



128-30 



37 



594-4 



38 



1031 





9 



120-58 



10 



482-6 



11 ' 684 









39 



594-3 









12 



116-77 



13 



468-9 



14 1 663 









40 



592-0 



41 



1020 





15 



116-83 



16 



483-4 



17 



653 





42 



127-97 



43 



584-2 



44 



1002 











(486-0) 













45 



586-6 









18 



117-70 



19 



492-2 



20 



665 









46 



585-3 



47 



987 





21 



116-70 



22 



501-1 



23 



671 











(587-6) 









24 



116-35 



25 



489-1 



26 



668 





48 



123-20 



49 



593-6 



50 



983 











(484-1) 









51 



117-10 



52 



602-3 



53 



959 





27 



114-22 



28 



476 



29 



637 





54 



118-43 



55 



576-9 

 (572-9) 



56 



945 





30 



112-87 



31 



474-8 

 (473-2) 



32 



605 





57 



115-48 



58 



571-6 



59 



945 





33 



114-35 



34 



466-3 



35 



581 



July 2 7 







108-05 



1 



592-4 



2 



925 





36 



113-73 



37 



476-0 ' 38 



569 











(595-8) 









39 



113-20 



40 



466-0 



41 



558 



, 



3 



110-38 



4 



601-7 



5 



916 





42 



109-98 



43 



461-9 



44 



538 





6 



114-35 



7 



602-7 



8 



922 











(460-4) 















(603-7) 









45 



108-16 



46 



447-1 



47 



510 





9 



115-55 



10 



597-4 

 (596-0) 



11 



927 





48 

 51 



109-18 



49 

 52 



434-5 

 419-4 



50 

 53 



479 



458 





12 



113-80 



13 



588-6 



14 



932 





54 



110-65 



55 



406-3 



56 



431 





15 



11200 



16 



586-5 



17 



930 





57 





58 



398-8 



59 



406 





18 



109-12 



19 



604-2 



20 



923 



July 2 10 









1 



387-4 



2 



367 











(607-0) 









4 



104-90 



4 



392-9 



5 



345 





21 



111-05 



22 



613-7 



23 



912 





6 



106-70 



7 



386-5 









24 



115-62 



25 



604-4 



26 



906 





8 



108-43 







8 



332 











(602-4) 









10 



110-92 



10 



376-7 



11 



304 





27 



119-18 



28 



592-8 



29 



908 





12 



11703 



12 



Out of field. 









30 



120-72 



31 



594-8. 



32 



908 





14 



126-42 







14 



236 











(593-8) 























33 



122-27 



34 



585-1 



35 



904 





32 



130-32 













36 



121-18 



37 



584-1 



38 



901 





34 



137-37 













39 



122-93 



40 



579-5 

 (577-2) 



41 



896 





36 



38 



139-38 

 141-05 







39 



214 





42 



122-20 



43 



569-2 

 (568-1) 



44 



890 





40 

 42 



138-72 

 134-95 













45 



123-07 



46 



567-0 



47 



885 





44 



130-18 



44 



323-3 



45 



299 





48 



125-55 



49 



561-3 



50 



889 





46 



126-48 



47 



358-4 







J^ifilar Thermometer. July 2* 7^, 61°-6 ; 9^, 60°-6. 





Balance Thermometer. .July 2d 7^, 61°-2 ; 9^, 60°-7. 





Arcs of Vibration. Declination Magnet. July 2* IQi^ 32", 15' ; lOi 34", 7' ; lO^ SG"", 



19'; 10" 38«, 17' ; lO^ iO-", 10'; 10i= 42" 26'. 



July 2'J 10'> 10". Bifilar Scale going out of field, reading estimated. 





July 2<i 10'> 16"^ Torsion circle of Bifilar turned from 109° 10' to 111° 35'. Various a 



ttempts were made to bring the scale into the 



field of the reading telescoiie, while the mirror for illuminating the collimator had been thro^ 



vn out of position ; this was not discovered till 



about 38™. The Balance cresses had also gone out of sight till the wooden front of the box 



was removed. In the adjustment of these two 



instruments the Declination readings were lost for some time. After 13'' the torsion circle wi 



is turned to its original position 109° 10'. 



The observations of the Bifilar Magnetometer from lOii 38™ till 13'' are reduced to the toi 



sion circle reading 109° 10'. See Introduction. 



See note, page 51, on the observations in brackets. 





