78 



Observations of Magnetic Dip, August 14 — December 29. 1843. 



Gottingen 

 Mean Time, 



Middle of 

 Observation. 



Aug. 14 



Aug. 18 



Aug. 21 

 Aug. 25 



Aug. 25 



Aug. 28 

 Sept. 4 

 Sept. 8 

 Sept. 12 

 Oct. '6 

 Oct. 8 

 Oct. 9 

 Oct. 9 

 Nov. 20 

 Nov. 20 

 Nov. 21 

 Nov. 22 

 Nov. 24 

 Nov. 28 

 Dec. 1 

 Dec. 4 

 Dec. 8 

 Dec. 12 

 Dec. 15 

 Dec. 18 

 Dec. 22 

 Dec. 27 

 Dec. 29 



li. m. 



23 45 

 8 5 



22 45 

 3 40 



7 



22 40 



23 



8 



1 5 

 3 10 



23 10 



45 



2 20 



1 30 



3 5 

 1 35 

 

 3 10 





 3 50 



23 15 

 3 35 



1 

 3 40 



23 15 



2 30 

 15 



3 55 



Dura- 

 tion 

 of 

 Obser- 

 vation. 



120 

 40 

 60 



55 

 45 

 45 

 110 

 55 

 50 

 50 

 60 



95 

 50 



55 



100 



60 



70 



48 



60 

 45 

 60 

 70 



Needle. 



Num- 

 ber. 



Tem- 

 pera- 

 ture. 



61 



57 



79 



66 



66 



73 



77 



/a 



66 



53 



56 



55 



40 



42 



50 



39 



48 



48 



49 



50 



42 



50 



48 



47 



End 

 dip- 

 ping. 



B 



A 



A 



B 



B 



A 



A 



B 



B 



A 



A 



B 



B 



A 



A 



B 



B 



A 



A 



B 



B 



A 



B 



A 



A 



B 



A 



B 



B 



A 



B 



A 



B 



A 



A 



B 



B 



A 



A 



B 



u 



A 

 B 

 B 

 A 

 A 

 B 

 B 

 A 

 A 

 B 

 B 

 A 

 A 

 B 



Face of Ciecle E. 



Mark on Needle 

 E. W. 



73 



69 



69 



73 



73 



68 



68 



73 



74 



69 



69 



73 



73 



69 



69 



74 



73 



69 



68 



75 



71 



70 



75 



68 



70 



71 



68 



74 



74 



68 



71 



70 



71 



70 



70 



71 



71 



71 



70 



71 



71 



70 



70 



71 



71 



71 



71 



72 



72 



71 

 72 

 71 

 71 

 72 



36-5 

 42-5 

 41-0 

 16-5 

 120 

 45-0 

 36-0 

 58-5 

 4.0 

 405 

 44-5 

 210 

 22-0 

 37-5 

 33-0 

 3-5 

 49-0 

 49-5 

 11-5 

 6-0 

 56-0 

 9-0 

 10-0 

 16-5 

 6-0 

 59-0 

 22-5 

 29-0 

 34-5 

 32-6 

 55-1 

 49-5 

 49-0 

 53-5 

 50-0 

 34-0 

 51-0 

 5-2 

 47-0 

 57-2 

 52-0 

 30-5 

 28-0 

 56-5 

 58-0 

 5-5 

 5-5 

 5-0 

 6-0 

 70 47-0 

 70 54-0 

 55-5 

 5-0 

 6-0 

 8-0 

 7-0 



68 



73 



73 



69 



69 



74 



74 



67 



67 



73 



73 



69 



69 



73 



73 



68 



68 



73 



72 



69 



71 



71 



69 



73 



71 



70 



73 



69 



70 



72 



71 



71 



71 



72 



72 



71 



71 



71 



71 



71 



71 



72 



72 



71 



71 



71 



71 



71 



71 



72 



72 



71 



71 



71 



72 



71 



51-0 

 30-0 

 35-0 

 26-5 



17-5 



13-5 



10-0 



42-5 



32-5 



20-0 



27-5 



40-0 



360 



31-5 



31-0 



32-5r 



19-Ot 



15-5 



540 



47-0 



10-0 



50-5 



54-0 



l7-5t 



57-0 



56-5 



5-5 

 47-0 



3-7 

 58-3 

 16-2 

 59-2 

 25-5 



2-1 



1-5 

 22-5 

 15-6 

 42-0 

 52-5 

 160 

 16-0 

 27-0 

 24-0 

 18-0 

 20-5 

 59-5 

 59-0 

 220 

 20-0 

 14-0 

 13-0 

 29-5 

 30-5 

 59-0 



3-7 

 28-0 



Face of Ciecle W. 



Mark on Needle 

 E. W. 



73 



69 



69 



72 



72 



68 



68 



73 



73 



69 



69 



72 



72 



69 



69 



73 



74 



69 



68 



75 



71 



70 



75 



68 



70 



72 



68 



74 



74 



68 



71 



70 



71 



70 



70 



71 



71 



70 



70 



71 



71 



70 



70 



71 



71 



5-0 

 56-0 

 41-0 

 44-5 

 50-5 

 59-5 

 56-5 

 16-0 

 22-0 

 46-5 

 41-0 

 58-0 

 53-5 

 350 

 34-5 

 250 



3-5 

 51-5 

 29-5 

 16-5 

 49-0 



8-5 

 130 

 17-5 

 17-5 



4-5 



8-0 

 350 

 23-8 

 25-7 

 55-4 

 39-0 

 38-3 

 40-3 

 37-5 

 44-5 

 42-9 

 55-3 

 49-0 

 48-3 

 47-5 



60 



70 

 44-5 

 50-0 

 70 45-5 

 70 51-0 

 53-0 

 45-5 

 26-0 

 23-0 

 37-5 

 43-0 

 39-0 

 42-9 

 44-0 



71 

 71 

 70 

 70 

 71 

 71 

 70 

 70 

 71 



68 



73 



73 



69 



69 



74 



74 



68 



68 



73 



73 



69 



69 



73 



73 



68 



68 



73 



73 



69 



71 



72 



70 



73 



72 



71 



73 



69 



69 



72 



71 



71 



71 



71 



71 



71 



71 



71 



71 



71 



71 



71 



71 



71 



71 



71 



71 



71 



70 



71 



71 



71 



71 



71 



71 



71 



51-0 



35-0 



30-0 



170 



17-0 



13-0 



22-5 



14-0 



20-0 



35-0 



33-5 



11-5 



11-0 



41-0 



44-5 



210 



44-0 



6-0 



8-0 



550 



21-0 



6-5 



0-0 



27-5 



5-0 



0-0 



8-0 



51-5 



58-6 



55-4 



13-0 



46-3 



19-9 



40-6 



38-5 



17-0 



12-9 



35-3 



53-7 



2-3 



2-5 



51-5 



51-0 



4-0 



8-0 



360t 



40-0 



11-0 



59-5 



43-0 



40-5 



8-0 



4-0 



27-0 



26-7 



4-0 



Mean. 



71 



71 



5-87 

 40-87 



71 36-75) 

 71 lM2j 

 71 9-25 

 71 32-75 

 71 31-25t 

 70 47-75/ 



70 49-62 



71 35-50 

 36-62 

 17-62 

 15-62 

 36-25 

 35-75 



5-50 

 13-87 

 30-62 

 40-75 

 31-12 

 34-00 



3-62 

 34-25) 

 49-75| 



6-37\ 

 30-00/ 

 70 41-00 



72 10-62 

 72 15-15 



70 43-00 



71 34-92 

 71 18-50 

 71 33-17) 

 71 19-12/ 



71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 

 71 



16-87 

 29-50 

 30-60 

 19-45 

 20-55 

 30-95 

 29-50 

 13-75 

 12-50 

 30-75 

 34-12 

 21-62 

 23-87 

 37-75 

 32-75 

 17-50 

 17-62 

 32-62 

 35-62 

 17-75 

 20-32 

 35-75 



A. dipping 

 Minus 



B. dipping. 



-f 35-00 

 + 25-63 

 -1- 23-50 

 + 43-50 

 + 45-88 

 -t- 19-00 

 + 20-63 

 -1- 30-25 

 + 16-75 

 -110-37 



- 30-38 

 -104-50 



- 23-63 



- 89-62 



- 92-15 



- 16-42 



- 14-05 



- 12-63 



- 1115 



- 10-40 



- 15-75 



- 18-25 



- 12-50 



- 13-88 



- 15.25 



- 15-00 



- 17-87 



- 15-43 



* Observations considered good. 



t Observations considered bad or doubtful.- 



Aug. 18'! 8''. A first attempt to change the poles of the needle failed, probably from the wrong end of the needle being taken. 

 Sept. 12<J — Oct. Q^. The dip instrument and needles sent to Messrs Adie and Son, Edinburgh, to be adjusted. 

 Oct. 9<i — Nov. 20<i. The observations in October were so unsatisfactory that they were discontinued for some time. 

 Nov 24>i 3i>. Before this observation the instrument vpas levelled, as it was previously slightly out of adjustment. 



