Transportation, the tread-wheel, or a public whipping, would perhaps be sufficient.

He proposed that the tread-wheel should measure the progress of the culprit, and that every revolution should bring him nearer to liberty.

The tread-wheel had been the mode in his time; so by the time he had made three thousand turns he was rather exhausted.

The building was open to the roof, and the first thing to be seen in it was that tread-wheel of which Elzevir had spoken.

"The horse on the tread-wheel can look through a crack, and see a flower growing outside."