The thought presently occurred to him, that the addition of an outrigger in the manner Philip had mentioned would enable him to carry a sail.

The canoe could not otherwise support a sail (unless a very small one merely for going before the breeze), but with such a sail as the outrigger would bear, he could venture much farther away from land, his voyage might be much more extended, and his labour with the paddle lessened.
This filled him with fresh energy; he returned, and at once recommenced work.

Oliver, finding that he was again busy at it, came and insisted upon assisting.

With his help, the work progressed rapidly.

He used the tools so deftly as to accomplish more in an hour than Felix could in a day.