LOCAL ATTRACTION OF THE BAFFIN. 
93 
To prove the accuracy of the hearings taken 
at the mast-head, and to satisfy myself that this 
position was really free from local attraction in 
every direction of the ship’s head, I took a set of 
azimuths, while the ship was on different tacks; 
and I likewise observed the constant bearing of 
the sun when the ship was in stays, and moving 
progressively through twelve points of the com¬ 
pass,—the whole of which, allowing for the sun’s 
motion in the interval, agreed within the limit 
of the errors of observation. For instance. 
Ship on the starboard tack, at 
6 h 51' r. it. 
0’s azimuth, 314° 
Larboard tack, 6 h 53't*. it. 
314° 30' 
Correction for 2' of time. 
0 30 314 
Starboard tack, 7 h 1' r. m. 
316° 15' 
Correction for 8' of time, 
2 0-314£ 
-7 h 9', 
316° 30' 
Correction for 9' of time, 
2 15 314J 
When the ship was tacking, 
/ 
and on various courses, 
7 h 9', 
318° 0' 
Correction for 16' of time, 
(about) - 
4 0-314 
iron tiller and iron rudder works, which, owing to the po¬ 
sition of the wheel (being near the taffrail), are rather too 
close to the binnacle. 
