hands till after it has put into motion its full complement of productive labour, or all that it could put into motion in the way in which it was employed. The workman must have earned his wages by work done before he can employ any part of them in this manner. That part, too, is generally but a small one. It is his spare revenue only, of which productive labourers have seldom a great deal. They generally have some, however; and in the payment of taxes the greatness of their number may compensate, in some measure, the smallness of their contribution. The rent of land and the profits of stock are everywhere, therefore, the principal sources from which unproductive hands derive their subsistence.

These are the two sorts of revenue of which the owners have generally most to spare. They might both maintain indifferently