inspected every part of the river, and formed in my own mind the following conclusions respecting the upward navigation:— 1st. That in a river of that size there must always be a lead somewhere, of depth enough for light boats. 2nd. That the force of the rapids would be found much abated; and that, with strong ropes, the worst of them might be surmounted. 3rd. From the fury of the breakers along the base of the precipices in June, I inferred the existence, at no great depth, of a narrow projecting ledge of rock, that, bared by the falling of the waters, would afford footing to the towing party; without which the ascent must, indeed, have baffled all our efforts. These views proved in the sequel to be just and well-founded.
A furious gale from the westward, accompanied with snow, detained us till 10 in the forenoon of the 31st, when we cut our way out of our icy prison—the grave of one year's hopes. We experienced a dangerous swell among the streams of ice outside; then, steering a west-south-west course, a traverse of nine miles brought us to Harry Cook Island, so named on the former expedition. On a close approach, however, it turned out to be a cluster of six or eight rocky isles. From thence we crossed to Wilmot Islands, a very numerous group, merely seen
