The impregnated clay appears to be constantly falling off the almost sheer face of the slate-brown cliffs, in great sheets, which plunge into the river's edge in broken masses.
The opposite river bank is much more depressed, and is clothed with dense forest.
The tar, whatever it may be otherwise, is a fuel, and burned in our camp-fires like coal.

That this region is stored with a substance of great economic value is beyond all doubt, and, when the hour of development comes, it will, I believe, prove to be one of the wonders of Northern Canada.

We were all deeply impressed by this scene of Nature's chemistry, and realized what a vast storehouse of not only hidden but exposed resources we possess in this enormous country.

What is unseen can only be conjectured; but what is seen would make any region famous.

We now came once more to outcrops of limestone in regular layers, with disintegrated masses overlying them, or sandwiched between their solid courses.