The leading boat by Powell's direction pulled, into it, but this move was no sooner made than he perceived that at the bottom the river turned sharply to the left and the waters were piled against the foot of the cliff in an alarming manner.

An effort was made to land, but as they had shortly before broken one oar and lost another, the two remaining were not sufficient to propel the boat with force enough to reach the desired point.

At the same time, a huge wave striking the boat turned it instantly upside down and cast Powell some distance away.

He succeeded in reaching her side, and there found Sumner and Dunn clinging.

When quiet water was again entered they attempted to right the craft, and in doing this Dunn lost his hold and went under, though at the critical moment, as he came up, Sumner succeeded in grasping him and drawing him to the boat.