132 



Observations of Magnetic Dip, Sept. 1 — Dec. 1, 184.5. 









Needli 





Face of 



DiRCLE B. 



Pace of Circle W. 









^^^ 



Gottin 



]\Iean 1 



Middk 



























^ 



jen 

 ime, 



iOf 



Dura- 

 tion. 



Num- 



Tem- 



End 



Mark on 



Needle 



Mark on Needle 





Mean. 



Observed 

 Dip. 



£i4 . 



Observation. 1 





ber. 



pera- 



dip- 

















i- 











ture. 



ping. 



E. 



W. 



E. 



W. 









d. 



h. m. 



m. 





o 

























, 









Sept. 1 



22 40 



20 



2 



57 



A 



71 8-5 



72 19-5 



70 23-0 



71 27-0 



71 



19-50 ■ 





w 



Sept. 2 

 Sept. 4 



4 50 

 22 40 



20 

 25 



2 

 2 



64 

 65 



A 

 B 



71 100 



72 32-5 



72 19-5 

 71 16-0 



70 24-0 



71 570 



71 28-0 

 70 470 



71 

 71 



20-37 

 38-12 



71 28-87 



w 

 w 



Sept. 5 



4 50 



15 



2 



68 



B 



72 30-5 



71 140 



71 57-5 



70 480 



71 



37-50 





w 



Sept. 9 







20 



2 



63 



A 



71 11-5 



72 26-0 



70 180 



71 150 



71 



17-62 " 





B 



Sept. 9 



5 



20 



2 



64 



A 



71 50 



72 22-5 



70 19-5 



71 25-0 



71 



18-00 



71 25-12 



B 



Sept. 11 



23 



20 



2 



64 



B 



72 16-0 



71 220 



71 44-0 



70 54-0 



71 



.S400 



B 



Sept. 12 



5 



20 



2 



76 



B 



72 90 



71 19-5 



71 420 



70 53-0 



71 



30-87 





B 



Sept. 16 



22 50 



20 



2 



57 



A 



71 17-0 



72 90 



70 34-5 



71 260 



71 



21-62 





W 



Sept. 17 



5 



20 



2 



60 



A 



71 120 



72 6-5 



70 34-5 



71 25-0 



71 



19-50 



71 31-68 



w 



Sept. 18 



22 45 



20 



2 



54 



B 



72 49-0 



71 360 



71 57-5 



70 39-5 



71 



45-50 



w 



Sept. 19 



6 20 



25 



2 



64 



B 



72 46-5 



71 170 



72 10 



70 360 



71 



4012 





w 



Sept. 22 



23 



20 



2 



59 



A 



71 4-5 



72 27-0 



69 58-5 



71 330 



71 



15-75 ' 





w 



Sept. 23 



4 50 



20 



2 



64 



A 



71 2-0 



72 25.5 



70 12-0 



71 24-0 



71 



15-87 



71 26-87 



w 



Sept. 25 



23 



25 



2 



57 



B 



72 32-5 



71 20-0 



71 55-0 



70 49-5 



71 



39-25 



w 



Sept. 26 



5 





2 



60 



B 



72 280 



71 240 



71 47-5 



70 47-0 



71 



36-62 





w 



Sept. 29 



23 15 



20 



2 



62 



A 



71 110 



72 19-5 



70 40-5 



71 340 



71 



26-25 ' 





B 



Sept. 30 



4 50 



15 



2 



54 



A 



71 7-0 



72 16-5 



70 39-5 



71 28-0 



71 



22-75 



71 27-28 



B 



Oct. 5 



23 15 



20 



2 



58 



B 



72 50 



71 235 



71 390 



70 520 



71 



29-87 



B 



Oct. 7 



4 40 



15 



2 



49 



B 



72 12-5 



71 24-5 



71 34-0 



70 50-0 



71 



30-25 





B 



Oct. 9 



22 50 



20 



2 



47 



A 



71 10-5 



72 19-5 



70 22-0 



71 230 



71 



18-75 '' 





W 



Oct. 10 



4 50 



... 



2 



50 



A 



71 13-0 



72 16-5 



70 27-0 



71 22-5 



71 



19-75 





W 



Oct. 13 



22 40 



25 



2 



56 



B 



72 500 



71 150 



72 5-0 



70 380 



71 



42-00 



71 29-90 



w 



Oct. 14 



5 





2 



64 



B 



72 42-0 



71 130 



72 20 



70 41-5 



71 



39-62 



w 



Oct. 16 



23 25 



30 



2 



55 



A 



71 100 



72 21-5 



70 16-0 



71 26-5 



71 



18-50 





w 



Oct. 17 



5 



20 



2 



53 



A 



71 6-5 



72 220 



70 17-0 



71 30-5 



71 



19-00 





w 



Oct. 21 



23 20 



20 



2 



50 



B 



72 28-0 



71 23-0 



71 450 



70 48-0 



71 



36-00 ' 





B 



Oct. 22 



5 



25 



2 



54 



B 



72 240 



71 24-0 



71 48-5 



70 520 



71 



37-12 



71 2806 



B 



Oct. 24 



15 



20 



2 



52 



A 



71 16-0 



72 11.5 



70 300 



71 19-0 



71 



1912 



B 



Oct. 24 



4 50 



15 



2 



52 



A 



71 160 



72 120 



70 300 



71 22-0 



71 



20-00 





B 



Oct. 28 



22 50 



20 



2 



52 



B 



72 19-5 



71 19-5 



71 470 



70 50-0 



71 



3400 ' 





W 



Oct. 29 



5 



... 



2 



51 



B 



72 19-0 



71 19-5 



71 46-0 



70 500 



71 



33-62 



71 26-09 



W 



Oct. 31 



22 50 



25 



2 



46 



A 



71 20 



72 44-5 



69 580 



71 26-5 



71 



17-75 



W 



Nov. 1 



5 



25 



2 



49 



A 



71 60 



72 41-5 



70 00 



71 28-5 



71 



19-00 





W 



Nov, 3 



22 50 



25 



2 



35 



B 



72 420 



71 20-5 



71 480 



70 31-5 



71 



35-50 '' 





W 



Nov. 4 



4 40 



20 



2 



52 



B 



72 41-5 



71 200 



71 580 



70 360 



71 



38-87 



71 28-87 



W 



Nov. 6 



22 20 



25 



2 



50 



A 



71 19-5 



72 210 



70 21-5 



71 25-0 



71 



21-75 



W 



Nov. 7 



4 30 



... 



2 



51 



A 



71 9-5 



72 18-5 



70 24-5 



71 25-0 



71 



19-37 





W 



Nov. 10 



23 



20 



2 



46 



B 



72 290 



71 18-0 



71 500 



70 420 



71 



34-75 ' 





B 



Nov. 11 



4 50 



20 



2 



47 



B 



72 27-5 



71 16-5 



71 510 



70 43.0 



71 



34-50 



71 27-87 



B 



Nov. 14 







20 



2 



42 



A 



71 23-0 



72 13-0 



70 30-0 



71 19-0 



71 



21-25 



B 



Nov. 14 



4 45 



20 



2 



42 



A 



71 210 



72 12-0 



70 320 



71 19-0 



71 



21-00 





B 



Nov. 18 



23 40 



20 



2 



49 



B 



72 26-5 



71 22-0 



71 56-0 



70 44-5 



71 



37-25 ' 





W 



Nov. 19 



4 45 



20 



2 



46 



B 



72 26-0 



71 22-5 



71 46-5 



70 50-0 



71 



36-25 



71 27-65 



W 



Nov. 20 



22 30 



20 



2 



39 



A 



70 57-5 



72 27-0 



70 21-5 



71 38-5 



71 



21-12 



w : 



Nov. 21 



7 20 



25 



2 



33 



A 



70 51-5 



72 270 



70 5-0 



71 40-5 



71 



leoof 





w 



Nov. 21 



22 30 



25 



2 



35 



A 



70 53-5 



72 21-0 



70 24-0 



71 37-5 



71 



19-00 ' 





w 



Nov. 22 



4 40 



25 



2 



39 



A 



70 570 



72 20-5 



70 15-5 



71 35-0 



71 



17-00 



\ 71 26-28 



w 



Nov. 24 



23 25 



20 



2 



44 



B 



72 400 



71 120 



71 560 



70 31-0 



71 



34-75 



w 



Nov. 25 



4 25 



20 



2 



44 



B 



72 36-5 



71 130 



71 520 



70 360 



71 



34-37 





w 



Nov. 27 



23 



25 



2 



46 



A 



70 580 



72 20-0 



70 14-5 



71 33-5 



71 



16-50 ) 





w 



Nov. 28 



4 30 



22 



2 



48 



A 



70 53-5 



72 19-0 



70 17-5 



71 38-0 



71 



17-00 y 



71 26-J8 



w 



Dec. 1 



23 25 



50 



2 



40 



B 



72 48-0 



71 100 



71 51-5 



70 330 



71 



35-62 ) 





1 











t Obsei 



-vation 



not satisfacto 



i-y- 









1 



! 











Oct. 22 



i 51^. I 



nstrunient ra 



ther out of le 



i-el. 







1 











Oct. 24 



lOh. 1 



icvelled the i 



nstrument. 



















Dec. Id 



23^. ( 



Observation u 



nsatisfactory, 



lifter gettin) 



y unsteady. 







' 





























1 



