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i I 2 M. 1 II 2 M. 1 III ' 2 M.
0. 165° 7-'i 7-'5 165° 7 -'3 44° 55-5 55-° 44° 55-'25 jo 0 00 cvj 3i-'25 284° 31/6
© 46 16. 5 67-5 46 42.0 289 52. 5 104. 5 290 18.5 173 i5-o 7i- 25 173 43- 1
Oh. ©1 7" 3m o'5 r 3/5 7* 5’" 2/0 7/l 2 1“ 26/0 25“ 32/5 lh 23“ 29/2 7h 39"' 3i-’5 44“ 9/0 7 * 41“ 50/3
I© 5 38.3 9 4i-5 7 39-9 24 4- 2 28 9.4 26 6.8 42 7.0 46 43-7 44 25.3
Ch. 77 6™ 20/95 7 24 48.0 7 43 7- 8
u. O 28 31-53 - O 28 31.6 — O 28 31-7
M. T. 6 37 49-4 6 56 16.4 7 14 36.1
E. • + 44 0 + 43-9 + 43-9
t 6 38 33-4 6 57 0.3 7 15 20.0
c) 23r 4' 20" 23° 4' 20" 2 3° 4' 20"
<f 60 59 36 60 59 36 60 59 36
a N 70 18/0 W N 66 28/7 W N 62 4 i.'o W
O 46 42 O 290 18.5 i73 43- 1
N. P. 117 O. O 356 47. 2 236 24. 1
0. 165 7- 3 44 55- 2 284 31. 6
A. N481 7- 3 E N 48° JO 06 N 48° 7-'5 E
Azimuth of Poldetind = N 48° 7.'6 E.
Samtidig maaltes Horizontalvinkelen mellem Polde-
tind og G-avlen af et Hus med Theodoliten og fandtes =
130° 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 a house, was measured at the same time with the theo-
dolite, and found to be 130° 50/1. Hence, the azimuth
of tlie gable = N 178° 57/7 E, or S 1° 2/3 E.
Klokkeslet. (Hour.) Magnet I. Gavl. (Gable.) Diff. Magnet II. Gavl. (Gable.) Diff. M. Deol.
3;‘ 20“ p. m. 278° 39' ■2950 44' 17° 5' 278° 27' ■ 295° 46/5 17° 20' 170 12/5 CO *4- 0 00
7 30 » : 218 13 235 22 1.7 9 217 49 235 22 17 33 17 2 1.0 18 23.3
5h 25“ p. m. 180 19/
Den 13de Juni tog Prof. Mohn folgende Observa-
tioner til Bestemmelse af Deldinationeu, paa samme Tid
som jeg svang Skihet for at bestemme Compassernes De-
viation. Stativet med Theodoliten rykkedes 0.75 Meter
mod Sydsydost fra den forrige Plads. Herved bliver
Azimut af Poldetind fra den nye Plads O.'l mindre, eller
N 48° 7/5 E.
Magnetometret opstilledes paa sin Plads og der gjOr-
des folgende Observationer, med Instrumentets egen Ivik-
kert, for at bestemme Magnet-Axens Collimation.
On the 13th of June, 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. Taken from this point, the azimuth of
Poldetind will be 0/1 less, or N 48° 7/5 E.
After mounting the magnetometer, he took the fol-
lowing observations, with the telescope of the instrument,
to determine the collimation of the axis of the magnet: —
(1) Front Board
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(101) Illustration
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(117) Rear Board
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(120) Fore Edge
(121) Scale
(122) Color Palette
(2) Front Board
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(101) Illustration
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(117) Rear Board
(118) Rear Board
(119) Spine
(120) Fore Edge
(121) Scale
(122) Color Palette