INTRODUCTION. XI 



discoverer (Vancouver Island), the Straits that 

 of the old sailor (Juan de Fuca). 



By the treaty of Washington, the 49th pi. of 

 lat. N. was to be the recognised Boundary Line, 

 the course through the sea to be the centre of 

 the Gulf of Georgia, and thence southward 

 through the Channel which separates the con- 

 tinent from Vancouver Island, to the Straits of 

 Juan de Fuca. 



The duties of our Commission were to mark 

 the Boundary line from the coast to the eastern 

 slope of the Rocky Mountains. 



May 1866. 



