No. 70.

[Extracts.]

Captain Prevost to Mr. Campbell.

4. By a careful consideration of the wording of the treaty, it would seem distinctly to provide that the channel mentioned should possess three characteristics: 1st. It should separate the continent from Vancouver’s Island. 2d. It should admit of the boundary line being carried through the middle of it in a southerly direction. 3d. It should be a navigable channel. To these three peculiar conditions the channel known as the Rosario Strait most entirely answers.Admiral Prevost on the channel of the treaty.

5. It is readily admitted that the Canal de Arro is also a navigable channel, and therefore answers to one characteristic of the channel of the treaty.

The Canal de Haro, or Arro, is undoubtedly the navigable channel which, at its position, separates Vancouver’s Island from the continent, and therefore, while other channels exist more adjacent to the continent, cannot be the channel which “separates the continent from Vancouver’s Island.”

7. With reference to your remarks upon the map drawn by “Charles Preuss,” * * I beg you to understand me that I do not bring this map forward as any authority for the line of boundary. * *

I will at once frankly state how far I am willing to concede, but beyond what I now offer I can no further go. In contemplating your view that all the channels between the continent and Vancouver’s Island, from the termination of the Gulf of Georgia to the eastern termination of the Straits of Fuca, are but a continuation of the channel of the Gulf of Georgia, I see a way by which I can in part meet your views without any gross violation of the terms of the treaty. I am willing to regard the space above described as one channel, having so many different passages through it, and I will agree to a boundary line being run through the “middleof it, in so far as islands will permit.