[TACKSON] 
METEOROLOGICAL SERVICE 
OF CANADA 
Form 7 
MAGNETIC OBSERVATIONS 
Horizontal Intensity: 
Station : Ft. Smith. 
Instrument : Magr. No. 15 
Chronometer : 3332 
Date : Thur. June 2, 1910. 
MAGNETIC OBSERVATIONS IN CANADA 
145 
Oscillations 
Obs’r: W. E. W. J. 
Magnet : 15 L (Inverted). 
daily rate gaining 3-9 secs. on mean time. 
| 
Number Chronometer Extreme scale Time of 
of | time readings 50 oscillations 
oscillations | 
| h m s | 
0 120 51.317 0-0 60-0 
5 | 51 57-4 
10 52 22-8 
15 52 48-5 
20 Dan 139 
25 53 39-6 
30 54 Bal 
35 54 30-6 
40 54 56-2 | 
45 yay lar 
— m 
50 55 47-3 4 15-6 
55 56 12-8 -4 
60 56 38-4 -6 
65 57 3-9 -4 
70 57 29-4 -5 
75 57 55-1 +5 
80 58 20-6 -5 
85 58 46-1 | .5 
90 SONT | -5 
95 D9m97-2 9-5 50-0 +5 
Means WD Gay By! 4 15-50 
h H mK 
Formule: T?= r(1+—) (-’+t) a) (+= Je —= 
f m 2 
Coefficient of torsion. One div. = 2-’00 Time of 1 oscil. 5- 11000 
Corr’n for rate* - 00023 
Tors. circle Seale Mean 
» ——————— — 
—-- he 5-10977 
196 | 26.0 | 33-6 | 29-80 Log T’? 1- 41680 
106 43-0 | 47-2 | 45-10 ; h 242 
“ + Le) 
286 13-0 | 18-1 | 15-55 f 
EURE See 8 
196 27-2 | 34-0 | 30-60 H 
ce loge je 39 
m ea 
ad , 1- 41967 
“ ome 
Mean v = 14-975— 30-0 2-81262 
“ wk 
Footscrew South NET 1:39295 
*Plus for losing rate and minus for gaining rate. 
