Visher on the Variatlonof the Compass. 89 



REMARKS. 



good. The bearings of a point of land were taken before and 

 after tacking, and were found to be the same in each case. 

 The binnacle compasses likewise agreeing. 



By Kater's Compass. On the larboard tack. 



Ditto. On the starboard tack. 



The same circumstances occurred in two observations, as in 

 the former two. 



By Kater's Compass. 



By Walker's Compass, on the starboard gangway. 



The compasses in both cases agreeing with the binnacle 

 compasses. 



By Walker's Compass, 



By Kater's Compass. 



Both sets of observations taken on the starboard gangway. 

 The direction of the ship's head by the azimuth compass was 

 E. 19°. S. Ship steady. 



By Walker's Compass. Taken on the ice at a considerable 

 distance from the ship, free from any local attraction. 



By Walker's Compass. On the ice as before. 



Ditto. Ditto. 



By Kater's Compass. Ditto. 



By Walker's compass. Ditto. 



By Walker's Compass. On the ice. 



Ditto. 



Ditto. 



The mean of these is 2r.49' W. 



