II 



III 



M. 



M. 



M. 



O. 







Oh. • 



•• 



Cli. 



u. 



M. T. 

 E. 



t 



å 



a 

 O 



N. P. 

 0. 



A. 



165 7 -'i 



46 16.5 



0*5 



38.3- 



7-'5 ' 165" 7-'3 

 67.5 46 42.0 



3. '5 7* 5"' 2.'0| 



6 38 33-4 

 23" 4' 20" 

 60 5Q 36 



N70 1 8/0 W 



46 42 o 



o. o 



165 7-3 



44 55-5 

 289 52.5 



2 1™ 26.'0 



24 4.2 



2 5" 

 28 



55-o 

 104- 5 



32/5 

 9-4 



44 55-25 

 2go 18. 5 



26 



>g.'2 

 6.8 



N 48" 7. 3 E N 48" 8/0 E 



Azimutli of Poldetind = N 48" 7. 'li E. 



284" 32/0 

 '73 i5-o 



39 

 42 



31-5 



7.0 



44 



46 



31- 25 

 7\- 25 



■ 9-*o 

 43-7 



284" 3 1 -'6 



173 43- 1 



f 41- 50/3 



44 25-3 



7 43 7-8 



o 28 31.7 



N 48" 7-'5 E 



Samtidig maaltes Horizontalvinkelen mellem Polde- 

 tind og -Gavlen af et Hus med Theodoliteu og fandtes == 

 18(>" 50/1. Altsaa bliver Azimut af Gavlen = N 178° 

 57/7 E eller S 1" 2/3 E. 



The horizontal angle between Poldetind and the gable 

 of :i house, was measured at the same time with the theo- 

 dolite. and found to be 130° 50/1. Hence. the azimuth 

 of the gable = N 178" 57/7 E. or 8 1° 2/3 E. 



Klokkeslet. 



(Bout.) 



Magnet I. 



Gavl. 

 (Sable I 



Ditt'. 



Magnet II. 



Gavl. 

 ( Gable. ) 



Ditt'. 



M. 



Drei. 



3 A 20'" p. m. 278'' 39' 



7 30 



5 h 25'" ]). 111. 



218 i. 



295 44 

 2 35 22 



17 5 

 17 9 



!78° 27' 2g5" 46/5 17° 20' i 17" 12/5 



17 49 235 22 17 33 17 21.0 



18" 14/8 

 18 23.3 



18' ig. 



Den 13de Juni tog Prof. Mohn følgende Observa- 

 tioner til Bestemmelse af Deklinationen, paa samme Tid 

 som jeg svang Skibet for at bestemme Oompassernes De- 

 viation. Stativet med Theodoliten rykkedes 0.75 .Meter 

 mod Sydsydost fra den forrige Plads. Herved bliver 

 Azimut af Poldetind fra den nye Plads 0/1 mindre, eller 

 X 48° 7/5 E. 



Magnetometret opstilledes paa sin Plads og tier gjor- 

 des følgende Observationer, med Instrumentets egen Kik- 

 kert, for at bestemme Magnet-Axens Collimation. 



On the 13th of .lune. Professor Mohn took the fol- 

 lowing observations to determine the declination, whilst I 

 swung the ship for deviation of compass. The theodolite 

 and stand was now moved 0.75 metre south-south-east from 

 its former position. Tåken from tliis point. the azimutli of 

 Poldetind will be 0/1 less. or X 4s" 7/5 E. 



After uioimtmg the magnetometer, he took the tol- 



Lowing observations, with the telesco] f the instrument, 



to determine the collimation of the axis of the magnet: — 



