144 
METEOROLOGICAL SERVICE 
OF CANADA 
Form 4 
MAGNETIC OBSERVATIONS 
Station: Fort Smith 
Instrument: Magr. No. 15 
Mark Chimney 
Magnet: 15 L 
THE ROYAL SOCIETY OF CANADA 
DECLINATION 
Date: Thursday June 2, 1910. 
Observer: W. E. W. J. 
Footserew: AB South 
Line of detorsion 196° 
Seale Readings 
Horizontal Circle Readings 
Chron. x £ L 
time Scale | Left Right Mean Mark Magnet 
hy eon d d d SAN Gi: 
IL 4k E 24-8 37-5 31-15 A 0 00 5 36 
Before 
42 E 25-0 38-0 31-50 B 180 00 185 36 
44 I 25-0 38-2 31-60 A 0 00 Brae 
After 
45 I 25-0 38-2 31-60 B 180 00 185 36 
46 it 25-2 38-8 32-00 
47 I 26-0 38-5 32:25 Mean 0 00 5 36 
49 E 26-6 38-8 32-70 
50 E 26-8 38-6 32-70 
Scale erect, Mean 32-012 
Scale inverted, Mean 31-862 
Axis 31-937 
h m 
Mean chron. time 11 46. 
30—mean (Divisions) — 1-937 
Chron. 3332 on L.M.T. fast 2035 
30 —mean (minutes) —= 3-9 
Scale—Axis Local mean time iL ail 
Reduction to axis 
Remarks: 
Circle reading 5 36-0 
+ 
Mag’s S. M. reading DAO2Al 5 38-0 Magnet fairly steady 
Mark reading 0 oO- 0 0-0 
Azimuth of mark* 27 39-0 27 39-0 
True S. M. reading 332 21-0 332 21-0 
Magnetic declination 33 Als 33 17-0 
Index correction 1-0 **From deflection obs’ns. 
h m 
Mean declination 33 12-1 vee 9 54 
Counted from south around by west from 0° to 360° 
