164 



Observations of Magnetic Dip, November 11 — December 31, 1844. 



r* 







Needle. 



Face of Circle E. 



Face of Circle W. 







JB 



IjrunjiiiMcn 























a> *— * 



Mean Time, 

 Middle of 



Dura- 

 tion. 



Num- 



Tem- 



End 

 dip- 



Mark on 



Needle 



Mark on 



Needle 



Mean. 



Observed 

 Dip. 



- 'Z 



Observation. 





ber. 



pera- 















r2 H* 



Q 











ture. 



ping. 



E. 



W. 



E. 



W. 











d. h. m. 



m. 





o 





o 



o 



o 



o 



o 









Nov. 



11 23 20 



78 



2 



44 



{1 



72 230 

 71 19-5 



71 20-5 



72 14-5 



71 50-0 

 70 290 



70 450 



71 22-0 



71 34-62 \ 

 71 21-25 J 



71 27-93 



B 



Nov. 



14 22 55 



40 



2 



53 



A 



71 17-0 



72 16-0 



70 31-0 



71 24-0 



71 22-00*1 





W 



Nov. 



15 4 45 



23 



2 



50 



A 



71 15-5 



72 12-0 



70 31-5 



71 23-5 



71 20-62 1 



71 35-59 



Nov. 



18 23 45 



60 



2 



51 



B 



73 40 



71 27-0 



72 23-5 



70 31-5 



71 51-50f( 



W 



Nov. 



19 4 10 



30 



2 



52 



B 



73 10-5 



71 10-5 



72 230 



70 29-0 



71 48-25 J 





Nov. 



21 22 35 



34 



2 



32 



B 



73 280 



71 21-5 



72 4-5 



70 140 



71 47-00 ) 







Nov. 



21 23 25 



54 



2 



34 



/ A 



71 230 



72 29-0 



70 190 



71 27-5 



71 24-62 V 



71 35-50 



W 



U 



71 150 



72 30-5 



70 21-0 



71 270 



71 23-38 ) 







Nov. 



22 30 



30 



2 



35 



B 



74 18-0 



71 120 



72 34-0 



69 420 



71 56-50f 





w 



Nov. 



28 23 25 



35 



2 



47 



B 



73 590 



70 45-0 



72 430 



69 41-5 



71 47-12 ) 





w 



Nov. 



29 3 55 



25 



2 



44 



B 



74 10 



70 52-5 



72 35-5 



69 45-5 



71 48-62 1 



71 33-56 



Dec. 



2 22 50 



23 



2 



36 



A 



71 4-5 



72 340 



70 7-0 



71 330 



71 19-62 ( 



w 



Dec. 



3 4 10 



25 



2 



38 



A 



71 3-0 



72 27-0 



70 11-5 



71 340 



71 18-87 J 





Dec. 



5 23 10 



25 



2 



23 



B 



73 0-0 



71 24-0 



72 2-5 



70 26-5 



71 43-25 ] 





w 



Dec. 



6 4 10 





2 



27 



B 



72 520 



71 25-0 



71 58-5 



70 31-5 



71 41-75 1 



71 30-09 



Dec. 



10 23 20 



15 



2 



32 



A 



71 05 



72 430 



69 52-5 



71 360 



71 18-00-N 



B 



Dec. 



11 4 50 



40 



2 



34 



A 



70 56-0 



72 46-0 



69 53-5 



71 34-0 



71 17-37 I 





Dec. 



14 1 5 



20 



2 



36 



B 



72 60 



71 320 



71 31-0 



70 580 



71 31-75 ] 





B 



Dec. 



14 4 55 



35 



2 



36 



B 



72 3-5 



71 34-0 



71 330 



70 59-0 



71 32-37 1 



71 26-18 



Dec. 



16 22 35 



25 



2 



38 



A 



71 11-5 



72 14-0 



70 29-5 



71 28-0 



71 20-75 [ 



w 



Dec. 



17 4 45 



23 



2 



40 



A 



71 9-5 



72 14-5 



70 30-0 



71 25-5 



71 19-87 J 





Dec. 



19 23 40 



35 



2 



27 



B 



72 40-5 



71 260 



j 71 46-5 



70 360 



71 37-25 ] 





w 



Dec. 



20 4 35 



25 



2 



27 



B 



72 400 



71 24-5 



71 470 



70 380 



71 37-37 1 



71 28-53 



Dec. 



23 22 25 



22 



2 



33 



A 



71 100 



72 17-5 



| 70 20-5 



71 320 



71 2000 ( 



w 



Dec. 



24 4 30 





2 



32 



A 



71 11-5 



72 20-5 



• 70 19-5 



71 26-5 



71 19-50 J 





Dec. 



26 22 20 



23 



2 



33 



B 



72 27-5 



71 290 



71 43-5 



70 47-0 



71 36-75 ] 





w 



Dec. 



27 4 20 



25 



2 



35 



B 



72 27-5 



71 25-5 



71 455 



70 50-5 



71 37-25 1 



71 28-28 



Dec. 



31 30 



25 



2 



40 



A 



70 53-0 



72 41-0 



69 56-5 



71 320 



71 15-62 j 



B 



Dec. 



31 4 45 



25 



2 



38 



A 



71 2-0 



72 44-0 



70 80 



71 400 



71 23-50 J 









* Obser\ 



ations ( 



:onsidei 



ed gooc 



I. 





t Observations considered bad or doubtful. 







■ 



Nov. 20 d 



. Firsl 



readin 



g uncei 



tain to 20' ; i 



nstrument in 



bad order. 











