The price of labour, when left to find its natural level, is a most important political barometer, expressing the relation between the supply of provisions, and the demand for them, between the quantity to be consumed, and the number of consumers; and, taken on the average, independently of accidental circumstances, it further expresses, clearly, the wants of the society respecting population, that is, whatever may be the number of children to a marriage necessary to maintain exactly the present population, the price of labour will be just sufficient to support this number, or be above it, or below it, according to the state of the real funds, for the maintenance of labour, whether stationary, progressive, or retrograde.