70 JOURNEY TO THE SHORES 



west part of the islet, the needle became 

 horizontal, traversed freely, and pointed to 

 the magnetic north. The dipping needle 

 being landed on the S.W. point of the islet, 

 was adjusted as nearly as possible on the 

 magnetic meridian by the sun's bearings, 

 and found to vibrate freely, when the face 

 of the instrument was directed to the east 

 or west. The mean dip it gave was 

 80° 37' 50". When the instrument was re- 

 moved from the N.W. to the S.E. point, 

 about twenty yards distant, and placed on 

 the meridian, the needle ceased to traverse, 

 but remained steady at an angle of 60°. On 

 changing the face of the instrument, so as 

 to give a S.E. and N.W. direction to the 

 needle, it hung vertically. The position of 

 the slaty strata of the magnetic ore is also 

 vertical. Their direction is extremely irre- 

 gular, being much contorted. 



Knee Lake towards its upper end be- 

 comes narrower, and its rocky shores are 

 broken into conical and rounded eminences, 

 destitute of soil, and of course devoid of 

 trees. We slept at the western extremity 



