144 AKSEL S. STEEN. TERRESTRIAL MAGNETISM. 
[NORW. POL, EXP. 
1894. July 14, a. m. 
Lat. N. 81° 32! 
Long. E. 124° 59° 
Needle B H = 0:039 
Mer. 200° 3' 
Circle E. Circle W. 
N SS) N Ss 
86° 22' 86° 13! 86°98’ 86° 26’ 
20 16 29 97 
18 16 97 95 
17 13 A. % 
17 15 95 9A. 
18 13 20 92, 
17 13 22, 22 
15 12 93 26 
16 13 20 91 
20 16 18 99 
18 17 17 19 
16 15 16 18 
17 17 15 18 
18 16 14 19 
15 16 14 17 
15 15 12 14 
18 16 10 14 
14 15 7 12 
15 14 8 14. 
13 14 12 16 
Mean 86° 15°8' 86° 19:0! 
Ti — OO rel: 
A = 155 
Ti — come 
Had laid pieces of board under the 
feet of the stand. The instrument has not 
hitherto been quite accurately levelled. 
It is only lately, however, since the setting 
up of the instrument began to be insecure, 
that it has two or three times happened 
that the bubble of the level has gone quite 
out to one side. Since then the screws 
have been adjusted all through the series 
of observations, so as to keep the bubble 
exactly in the middle. 
1894. July 20. 
Lat. N. 81° 30' 
Long. E. 125° 5! 
Needle B H = 0:039 
Mer. 172° 30! ) 
Cirele E. Circle W. 
N S N Ss 
86°53' 86°47! Syed fey/e* fey 
5A 45 10 5 
48 44. 6 1 
46 42 2 0 
43 40 0 0 
40 38 86 59 1 
38 35 Sie: 86 58 
39 35 86 59 87 O 
34 33 58 0 
34 32 58 86 58 
33 *) 30 57 58 
34 31 59 58 
31 97 3) 57 56 
30 30 55 54 
28 97 54 56 
32 33 4) 52 56 
32 32 54 56 
31 32 ay) teh) 
33 33 59 9 
34 34 87 2 5 
Mean 86° 36°2' 5) 86° 59°6' 
if = 86° 48' 
4a4= —A49 
TF = 18°59! 
Mer. 171° 10‘ 
1) Needle restless. *) Oscillated a little 
between 86°45’ and 86°30‘. °) Sudden 
dip of the north end. ‘) Jerk to 86° 45’, 
5) All through the settings “Circle E” the 
needle was lively, as also during the first 
two or three settings of “Circle W”; after- 
wards quiet. 
Meridian setting uncertain. The ice 
possibly in vibratory motion. Once or 
twice during the observations heard a 
rumbling sound resembling distant thunder 
to the SSE, very unlike the ordinary sound 
of screwing. Heard also a little slight 
screwing in the east. A fresh meridian 
setting was taken after the observations 
were concluded. 
