76 



Observations of Magnetic Dip, 



January 2— April 18. 1843. 







Gbttingen 

 Mean Time, 



Middle of 

 Observation. 



Dura- 

 tion 

 of 

 Obser- 

 vation. 



Needle. 



Pace of 



Circle E. 



Pace of Circle W. 



Mean. 



A. dipping 

 Minus 



B. dipping. 



T 



Num- 

 ber. 



Tem- 

 pera- 

 ture. 



End 

 dip- 

 ping. 



Mark or 

 E. 



1 Needle 

 W. 



Mark on 

 E. 



Needle 

 W. 



Observed 

 Dip. 





d. h. m. 



m. 











o 



, 



o 



o 



o 



/ 



' 







Jan. 2 21 



58 





33 



{b 



69 52-0 

 72 57-0 



73 36-5 

 69 27-0 



69 32-5 

 72 27-5 



73 25-5 

 69 17-5 



71 

 71 



36-62) 



2'25j 



-1-34.37 



71 19-44 





Jan. 6 6 



50 





59 



{I 



73 10 

 69 42-0 



69 28-0 

 73 37-Ot 



73 0-0 

 69 25-0 



69 19-0 

 73 23-5 



71 

 71 



12-00} 

 31-87/ 



-t- 19-87 



71 21-94 





Jan. 9 22 45 



25 





47 



{b 



69 520 

 73 0-0 



73 370 

 69 28-0 



69 28-0 

 72 44-0 



73 26-5 

 69 13-0 



71 

 71 



35-87) 

 6-25/ 



-1-29-62 



71 2106 





Jan. 13 7 5 



45 





52 



{I 



72 58-0 

 69 46-0 



69 29-0 

 73 430 



72 50-0 

 69 29-0 



69 15-5 

 73 18-5 



71 

 71 



8-12) 

 34-12J 



4-26-00 



71 21-12 





Jan. 16 22 45 



65 





53 



{b 



69 51-0 

 72 59-5 



73 36-5 

 69 36-0 



69 26-0 

 72 43-0 



73 120 

 69 18-5 



71 



71 



31-37) 

 9-25/ 



-1-22.12 



71 20-31 





Jan. 20 3 5 



43 





58 



{1 



73 7-5 

 70 13-5 



69 39-5 

 73 8-0 



73 45-0 

 69 54-0 



69 15-0 

 72 55-5 



71 

 71 



11-75) 

 32-75/ 



+ 21-00 



71 22-25 





Jan. 23 23 5 



70 





56 



{b 



70 14-5 

 72 56-5 



73 130 

 69 44-5 



69 51-0 

 72 36-0 



72 55-5 

 69 26-0 



71 

 71 



33-50) 

 10-75/ 



+ 22-75 



71 22-12 





Jan. 28 3 20 



57 





57 



{I 



72 58-5 

 70 9-0 



69 40-0 

 73 16-5 



72 40-0 

 69 44-0 



69 26-5 

 72 57-0 



71 

 71 



11-25) 

 31-62/ 



+ 20-37 



71 21-44 



Jan. 30 22 35 



25 





57 



it 



70 0-0 

 73 1-0 



73 16-0 

 69 30-5 



69 38-5 

 72 46-5 



73 30-5 

 69 11-0 



71 

 71 



36-25) 

 7-25/ 



+ 29-00 



71 21-75 





Feb. 3 3 35 



35 





53 



Ia 



73 7-0 

 70 2-5 



69 17-5 

 73 25-5 



72 51-0 

 69 360 



69 14-5 

 73 220 



71 

 71 



7-50) 

 36-50) 



+ 29-00 



71 2200 





Feb. 6 23 



50 





50 



a 



70 3-5 



72 58-5 



73 34-5 



69 27-5 



69 37-0 

 72 39-0 



73 20-Ot 

 69 24-0 



71 



71 



38-75i 



7-25/ 



+ 31-50 



71 23-00 





Feb. 10 3 10 



50 





55 



{I 



72 56-0 

 70 15-5 



69 47-5 

 73 14-0 



72 35-5 

 69 52-5 



69 11-0 

 72 52-0 



71 



71 



7-50) 

 33-50/ 



+ 26-00 



71 20-50 





Feb. 13 22 45 



40 





45 



it 



70 16-0 

 73 8-0 



73 9-0 

 69 41-0 



69 49-0 

 72 47-5 



72 58-0 

 69 10-Ot 



71 

 71 



33-00) 

 11-62) 



+ 21-38 



71 22-31 





Feb. 17 3 35 



28 





55 



{I 



73 7-5 

 70 8-5 



69 27-0 

 73 23-5 



72 49-0 

 69 48-0 



69 11-0 

 73 11-0 



71 

 71 



8-62) 

 37-75/ 



+ 29-13 



71 23-19 





Feb. 20 22 40 



48 





47 



{i 



70 150 

 72 59-5 



73 230 

 69 46-5 



69 44-0 

 72 38-0 



73 5-0 

 69 30-5 



71 

 71 



36-75) 

 13-62) 



+ 23-13 



71 25-19 





Feb. 27 22 32 



35 





46 



{I 



72 56-0 

 70 2-5 



69 46-0 

 73 27-0 



72 31-5 

 69 33-0 



69 25-5 

 73 16-0 



71 

 71 



9-75) 

 34-62) 



+ 24-87 



71 22-19 





Mar. 3 5 30 



40 





54 



{t 



70 2-0 

 73 10-0 



73 22-0 

 69 36-5 



69 32-5 

 72 46-0 



73 6-5 

 69 12-5 



71 



71 



30-75) 

 11-25/ 



+ 19-50 



71 21-00 





Mar. 10 3 30 



60 





52 



{I 



73 6-5 

 70 19-0 



69 35-0 

 73 14-5 



72 49-0 

 69 47-5 



69 19-0 

 72 58-0 



71 

 71 



12-371 

 34-75/ 



+ 22-38 



71 23-56 



. 



Mar. 13 22 35 



30 





50 



{^ 



70 15-0 

 73 20 



73 18-0 

 69 40-0 



69 46-0 

 72 31-0 



72 55-5 

 69 13-5 



71 

 71 



33-62) 

 6-62/ 



+ 27-00 



71 20-12* 



1; 



Mar. 17 3 20 



35 





47 



{I 



73 0-0 

 70 4-5 



69 44-5 

 73 28-0 



72 39-5 

 69 32-5 



69 15-0 

 73 60 



71 

 71 



9-75) 

 32-75} 



+ 23-00 



71 21-25* 



li 



Mar. 20 23 



65 





46 



{t 



70 4-0 

 73 3-0 



73 27-5 

 69 45-0 



69 36-5 

 72 37-0 



73 6-5 

 69 22-0 



71 



71 



33-62) 

 11-75/ 



+ 21-87 



71 22-69 



1 



Mar. 24 3 30 



53 





46 



{I 



73 25 



70 12-5 



69 44-5 

 73 21-5 



72 35-5 

 69 43-5 



69 12-5 

 73 5-0 



71 

 71 



8-75) 

 35-62/ 



+ 26-87 



71 22.19 



■ 



Mar. 31 3 10 



45 





54 



\t 



70 11-5 

 73 0-5 



73 22-0 

 69 45-5 



69 41-0 

 72 30-0 



73 8-0 

 69 29-0 



71 

 71 



35-62) 

 11-25/ 



+ 24-37 



71 23-44 



; 



Apr. 3 23 



60 





46 



{I 



72 57-0 

 70 7-5 



69 46-0 

 73 19-0 



72 310 



69 46-5 



69 25-5 

 73 3-5 



71 

 71 



9-87) 

 34-12/ 



+ 24-25 



71 22-00 



! 



Apr. 7 3 



40 





50 



{b 



70 11-5 

 72 59-5 



73 20-0 

 69 44-0 



69 47-5 

 72 33-5 



73 4-0 

 69 22-0 



71 

 71 



35-75) 

 9-75) 



+ 26-00 



71 22.75 



i 



Apr. 10 23 15 



45 





36 



\l 



72 59-5 

 70 9-0 



69 43-0 

 73 220 



72 32-0 

 69 45-0 



69 20-0 

 73 5-0 



71 

 71 



8-62) 

 35-25) 



+ 26-63 



71 21-94 



1 



Apr. 14 3 20 



... 





53 



Ib 



70 9-0 

 73 4-5 



73 26-5 

 69 44-0 



69 40-0 

 72 38-5t 



73 3-5 

 69 17-5 



71 

 71 



34-75) 

 11-12/ 



+ 23-63 



71 22-94 





Apr. 18 40 



45 





53 



{I 



73 7-0 

 70 100 



69 39-5 

 73 31-5 



72 39-5 

 69 31-0 



69 12-0 

 73 4-0 



71 

 71 



9-50) 

 34-12/ 



+ 24-62 



71 21-81*1 







* Observations considerec 



good. 





t Obser 



vations consic 



ered 



bad or doubtful. 



1 



1 



V 



Jan. 160 221-. 

 v^ards reversed. 



In changing the poles of the n 



eedle the wrc 



)ng end was 



it first taken 



, so that A. n 



orth 



was strengthened ; th 



e poles were a f 

















.._ 





■ 



V 



