These were engaged in hewing logs, building a mill-dam, and putting up a saw-mill.

Marshall, as the architect, had made the "tub-wheel," and had set it in motion, and had also furnished some of the rude parts of machinery necessary for an ordinary up-and-down saw-mill.
Labor was very scarce, expensive, and had to be economized.

The mill was built over a dry channel of the river which was calculated to be the tail-race.

After arranging his head-race, dam and tub-wheel, he let on the water to test the goodness of his machinery.

It worked very well until it was found that the tail-race did not carry off the water fast enough, so he put his men to work in a rude way to clear out the tail-race.