JOHN MURRAY 



83 



siderable submarine ridge rising to within 200 or 300 fathoms 

 of the surface. Sir Wyville Thomson induced the Admiralty 

 to give the use of a surveying vessel for a few weeks for the 

 purpose of sounding the Faroe Channel with a view of testing 

 this opinion. That was the origin of the " Knight-Errant " 

 expedition in the summer of 1880, conducted by Captain 

 Tizard, R.N., and Mr. John Murray, under the general 

 direction of Sir Wyville Thomson, who remained at Storno- 

 way, in the Outer Hebrides, during the four traverses of the 



ICE- 

 tANDd 





TT 



;' Deep Arctic Ocean \ 





0' 



I 

 Faroes 





.■•••■ /e,^/' .• 



Deep 

 Atlantic 

 Ocean 



Area, y' Thomson oo; 



y yy Ridge ^. 



Fjg, 3. — Sketch-chart showing the Wyville Thomson 



THE Faroe Channel. 



Ridge in 



region in question. The results {Proc. Roy. Soc. Edin. for 

 1882, vol. xi) showed that a ridge-rising to within 300 fathoms 

 of the surface runs from the N.W. of Scotland by the island 

 of N. Rona to the southern end of the Faroe fishing-bank. 



This was followed, after the death of Sir Wyville Thomson, 

 by a further expedition in H.M.S. " Triton," in the summer 

 of 1882, again under Murray and Tizard, which was very 

 fruitful of zoological results. The discovery of two very 

 different assemblages of animals living on the two sides of 



