146 AKSEL S. STEEN. TERRESTRIAL MAGNETISM. [NORW. POL. EXP. 
1894. August 2, a. m. 1894. August 2, p. m. 
Lat. N. 81° 4 Lat. N. 81° 4! 
Long. E. 127° 0! Long. E. 127° 0° 
Needle B H = 0039 Needle B H = 0:039 
Mer. 226° 44/ Mer. 227° 23! 
Circle E. *) Circle W. *) Cirele E. Circle W. 
N Ss N Ss N Ss N Ss 
86°17 86°15’  86°20' 86° 18' 86°16 86°13’  86°26/ 86°97! 
17 16 19 17 16 12 26 25 
18 14 al 18 18 16 25 23 
18 15 19 16 15 13 25 29 
18 15 18 16 18 15 29 1 
18 16 19 15 17 15 20 20 1) 
19 17 yl 16 18 17 17 18 
18 15 19 17 18 19 17 18 
17 14 ol 16 20 20 15 16 
17 13 19 17 19 214 16 17 
Mean 86° 16'3' 86° 18'1! 17 19 15 18 
20 29 14 19 
: : 16 20 12 16 
pao 17 19 11 16 
ae pe 13 15 5 11 
17 18 8 12 
198 12 15 6 12 
18 16 12 13 5 11 
17 8 12 3 10 
17 17 Means 5 13 5 {4 
18 18 Cirele E. CircleW. a ; 5 ; 
9% 19 1. 86°163' 86°181! Mean 86° 160' 86° 15'9' 
23 22 2. 86 193 I’ = 86° 16' 
95 21 Mean 86°178' 86° 181’ 4 = —5d 
A. 93 ff = 66°18" IT = 85°21! 
yl 93 YA ES 
20 22 I = 85°23 Mer. 228° 19! 
19 yl 
17 20 
15 20 
Mean 86° 19°3' 
Investigation of the influence of inaccu- 
rate levelling upon the position of the 
needle. 
1) The bubble of the level quite at 
the south end by the frame, the bracket 
remaining in the same position, *) The 
bubble of the level quite at the north end 
by the frame. The bracket not touched. 
3) Accurate levelling. The bracket moved 1) Oscillating between 86°28 and 
over as usual, 86° 15'. 
