Observations of Magnetic Dip, August 1 — November 9, 1844. 



163 



Gottingen 

 Mean Time, 



Middle of 

 Observation. 



d. h. m. 



1 22 35 



2 4 40 



5 22 30 



6 4 30 



8 22 45 



9 4 44 

 13 45 

 13 4 45 



15 23 20 



16 4 50 



19 22 45 



20 4 45 



22 23 45 



23 4 40 

 27 22 40 



4 45 







4 45 



22 30 



4 

 23 



4 



50 







25 



9 23 55 

 10 1 15 

 10 25 

 10 50 

 10 6 40 



12 23 40 



13 22 20 



14 4 40 

 17 15 



17 4 45 



19 22 50 



20 4 45 



23 23 15 



24 4 45 



26 23 5 



27 4 50 



3 22 50 



4 4 50 



7 23 15 



8 4 45 



10 23 35 



11 4 55 



18 10 

 18 23 35 



21 22 50 



22 4 55 



24 23 



25 4 50 



28 23 



29 4 50 

 31 22 55 



1 4 55 



7 23 55 



8 23 45 



9 4 30 



Dura- 

 tion. 



25 

 20 

 25 

 20 

 20 

 18 

 43 

 23 

 30 

 15 

 15 

 20 

 20 

 15 

 25 

 20 

 25 

 20 

 20 

 30 

 20 

 18 

 20 

 20 

 25 

 20 

 20 

 25 

 20 

 15 

 15 

 18 

 17 

 17 

 20 

 15 

 25 

 20 

 16 

 20 

 20 

 20 

 25 

 20 

 25 

 20 

 17 

 20 

 32 

 18 

 25 



40 

 22 

 55 

 24 

 25 



Needle. 



Num- 

 ber. 



Tem- 

 pera- 

 ture. 



71 



71 

 57 

 61 

 63 

 63 

 72 

 70 

 78 

 67 

 70 



66 

 66 

 77 

 80 

 79 

 77 

 62 

 65 

 64 

 64 

 64 

 64 

 62 

 62 

 59 

 64 

 50 

 54 

 52 

 53 

 62 

 61 

 67 

 71 

 68 

 69 

 52 

 54 

 48 

 52 

 60 

 57 

 58 

 42 

 43 

 62 

 50 

 50 

 44 

 47 

 49 

 46 

 47 

 51 

 50 



End 

 dip- 

 ping. 



B 

 B 

 A 

 A 

 B 

 B 

 A 

 A 

 B 

 B 

 A 

 A 

 B 

 B 

 A 

 A 

 B 

 B 

 A 

 A 

 A 

 A 

 B 

 A 

 B 

 A 

 A 

 B 

 B 

 B 

 A 

 A 

 B 

 B 

 A 

 A 

 B 

 B 

 A 

 A 

 B 

 B 

 A 

 A 

 B 

 B 

 A 

 A 

 B 

 B 

 A 

 A 

 B 

 B 

 A 

 A 

 A 



Pace of Circle E. 



Mark on Needle 

 E. 



72 

 72 

 71 

 71 

 72 

 72 

 70 

 70 

 72 

 71 

 71 

 71 

 72 

 72 

 71 

 71 

 72 

 72 

 71 

 70 

 68 

 68 

 72 

 71 

 75 

 68 

 71 

 72 

 72 

 72 

 71 

 71 



71 

 71 

 72 

 72 

 71 

 71 

 72 

 72 

 70 

 70 

 72 

 72 

 71 

 71 



71 

 73 

 73 

 71 

 71 

 71 



110 

 8-5 

 3-0 

 4-5 

 21-5 

 220 

 56-5 

 56-5 

 0-0 

 58-5 

 17-0 

 130 

 9-5 

 8-0 

 21-5 

 17-5 

 0-5 

 10 

 0-5 

 55-5 

 39-0 

 37-5 

 100 

 14-0 

 21-5 

 42-0 

 11-5 

 20-0 

 22-0 

 18-0 

 12-5 

 13-5 

 72 27-5 

 72 23-0 

 9-0 

 10-5 

 30-0 

 23-5 

 170 

 10-0 

 54-0 

 52-0 

 48-5 

 47-5 

 24-0 

 35-0 

 210 

 18-0 

 72 48-5 

 72 44-0 

 71 60 

 2-0 

 20 

 3-5 

 180 

 8-5' 

 9-5 





W. 



o 



, 



71 



23- 



71 



25- 



72 



33- 



72 



33- 



71 



25- 



71 



26- 



72 



32- 



72 



29- 



71 



31- 



71 



30- 



72 



15- 



72 



9- 



71 



33- 



71 



34- 



72 



9- 



72 



7- 



71 



30- 



71 



28- 



72 



29- 



72 



35- 



72 



59- 



72 



58- 



71 



31- 



72 



16- 



70 



0- 



72 



59- 



72 



14- 



71 



19- 



71 



20- 



71 



23- 



72 



27- 



72 



27- 



71 



26- 



71 



24- 



72 



22- 



72 



20- 



71 



31- 



71 



30- 



72 



20- 



72 



20- 



71 



15- 



71 



11- 



72 



41- 



72 



41- 



71 



22- 



71 



21- 



72 



11- 



72 



10- 



71 



20- 



71 



19- 



72 



35^ 



72 



35- 



71 



13- 



71 



14- 



72 



22- 



72 



28- 



72 



20- 



Pace or Circle W. 



Mark on Needle 



E. 



W. 



o / 



o 



71 40-0 



70 57- 



71 530 



70 51- 



70 30 



71 38- 



70 9-5 



71 38- 



71 460 



70 51- 



71 45-5 



70 50- 



70 7-5 



71 44- 



70 10-0 



72 0- 



71 35-5 



71 6- 



71 35-0 



71 6- 



70 28-0 



71 37- 



70 36-0 



71 29- 



71 40-0 



71 6- 



71 34-0 



70 58- 



70 42-0 



71 32- 



70 520 



71 25- 



71 33-0 



71 1- 



71 34-5 



71 2- 



70 8-0 



71 37- 



69 58-5 



71 38- 



68 21-0 



72 37- 



68 18-5 



72 35- 



71 430 



70 57- 



70 30-0 



71 35- 



74 59-0 



69 26- 



68 21-0 



72 42- 



70 29-5 



71 29- 



71 490 



70 54- 



71 42-5 



70 49- 



71 48-0 



70 45- 



70 10-5 



71 20- 



70 7-5 



71 22- 



71 47-0 



70 53- 



71 46-0 



70 49- 



70 130 



71 27- 



70 210 



71 27- 



71 46-5 



70 56- 



71 43-5 



70 56- 



70 140 



71 21- 



70 14-5 



71 22- 



72 40 



70 30- 



72 5-0 



70 36- 



69 40-5 



71 30- 



69 43-0 



71 33- 



71 56-0 



70 52- 



71 48-0 



70 43- 



70 28-5 



71 17- 



70 44-0 



71 21- 



71 57-5 



70 36- 



71 57-5 



70 42- 



69 58-0 



71 25- 



70 9-0 



71 31- 



72 9-5 



70 35- 



72 8-5 



70 30- 



70 16-0 



71 27- 



70 20-5 



71 27- 



70 20-5 



71 29- 



•5 

 •5 

 •0 

 •0 

 •5 

 ■5 

 •0 



■«t 

 •5 



•5 



•5 



•5 



•0 



•5 



•5 



•5 



■5 



■0 



•0 



•0 



■5 



•5 



•0 



•0 



•0 



•5 



• 



• 5 

 •0 

 •5 

 •5 



5 

 ■ 



• 

 •0 

 •0 

 •0 

 •5 

 •5 

 •5 

 •0 

 •0 

 ■5 

 •0 

 •5 

 •5 

 •5 

 •0 

 •5 

 ■0 

 •0 

 •0 

 •5 

 •5 

 •0 

 •0 

 ■0 



Mean. 



71 33- 



71 34- 



71 19- 



71 21- 



71 36- 



71 36- 



71 20- 



71 24- 



71 33- 



71 32- 



71 24- 



71 21- 



71 37- 



71 33- 



71 26- 



71 25- 



71 31- 



71 31- 



71 18- 



71 16- 



70 39- 



70 37- 



71 35- 



71 23- 



72 26- 



70 41- 



71 21- 

 71 35- 

 71 33- 

 71 33- 

 71 17- 

 71 17- 

 71 38- 

 71 35- 

 71 17- 

 71 19- 

 71 40- 

 71 38- 

 71 18- 

 71 16- 

 71 40- 

 71 41-i 

 71 10- 

 71 11- 

 71 38-i 

 71 36-; 

 71 19-i 

 71 23-: 

 71 40-i 

 71 40-( 

 71 16-1 

 71 19-: 

 71 45- 

 71 44-: 

 71 20-: 

 71 2M 

 71 19-^ 



Observed 

 Dip. 



71 27-03 



71 2909 



71 28-00 



71 30-71 



71 24-56 



71 29-40 



71 29-50 



71 33-87f 



71 28-37* 



71 25 65 



71 27-81 



71 28-59 



71 25-78 



71 29-59 



71 29-15 



71 32-56 



? la 

 £ '-3 



O 



w 

 w 

 w 



B 

 B 

 W 

 B 

 B 

 W 

 W 

 W 

 B 

 B 

 B 

 W 

 W 



w 

 w 

 w 

 w 

 w 

 w 



B 

 W 



w 

 w 



w 



B 



* Observations considered good. f Observations considered bad or doubtful. 



Sept. 5" 1 — 6 J . The dip deduced for needle No. 1. has been obtained by applying a correction of ol'-09 to the mean A dipping; the 

 correction being half the difference of the observations for A and for B dipping, made July 3u d and Sept. 10 d . 

 Oct. 31 d . Before this observation the level of the instrument was adjusted. 

 Nov. 7 d . Unsatisfactory observation ; the instrument quite damp, and the needle scarcely ceases to vibrate. 



