146 
THE ROYAL SOCIETY OF CANADA 
METEOROLOGICAL SERVICE 
OF CANADA, 
Form 7 
MAGNETIC OBSERVATIONS 
Horizontal Intensity: 
Station : Ft. Smith. 
Date : Thur. June 2, 1910. 
Instrument : Magn. No. 15. 
Magnet: 
Chronometer: 3332 daily rate gaining 3-9 secs. on mean time. 
Number 
of. 
oscillations 
Means 
Chronometer 
time 
COORDWIHAH | or oo 0018 00 
57: 
h H 
Formulæ: m—T1(1+—) (1-W-t)4) (: +»—); mH = 
f m 
Coefficient of torsion. 
One div. = 2-’00 
Tors. circle Scale Mean |Diff’s 
196 20-0 | 38-0 | 29-00 
16-05 
106 37-1 | 53-0 | 45-05 
30-65 
286 5-8 | 23-0 | 14-40 
15-10 
196 24-9 | 34-1 | 29-50 
d LA 
Mean v = 15-45 = 30-9 
Footscrew AB South 
17-8 
L. M. T. 
oscillations 
m 
9 22 
Oscillations 
Obs’r: W. E. W. J. 
15 L (Erect). 
Extreme scale 
readings 
0-0 60-0 
8-0 
Time of 1 oscil. 
Corr’n for rate* 
IT! 
Log T’? 
h 
“ (: + ~) 
f 
un He 
H 
(9) 
“ TK 
« mH 
« T2 
Time of 
50 oscillations 
1 Cu 09 à O1 Gr Go Go CO CH 
4 15-40 
T2K 
T2? 
5: 10800 
23 
5-10777 
1:41646 
+ 00249 
+ 00022 
- 00039 
1-41910 
2-81264 
1-39354 
*Plus for losing rate and minus for gaining rate. 
