With respect to the second point, whether a tax on the wages of labour would raise the price of labour, Mr. Buchanan says, "After the labourer has received the fair recompense of his labour, how can he have recourse on his employer, for what he is afterwards compelled to pay away in taxes? There is no law or principle in human affairs to warrant such a conclusion. After the labourer has received his wages, they are in his own keeping, and he must, as far as he is able, bear the burthen of whatever exactions he may ever afterwards be exposed to: for he has clearly no way of compelling those to reimburse him, who have already paid him the fair price of his work." Mr. Buchanan has quoted with great approbation, the following able passage from Mr. Malthus's work on population, which appears to me completely to answer his objection. "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. Instead, however, of considering it in this light, we consider it as something which we may raise or depress at pleasure, something which depends principally on his majesty's justices of the peace. When an advance in the price of provisions already expresses that the demand is too great for the supply, in order to put the labourer in the same condition as before, we raise the price of labour, that is, we increase the demand, and are then much surprised, that the price of provisions continues rising. In this, we act much in the same manner, as if, when the quicksilver in the common weather glass, stood at _stormy_, we were to raise it by some forcible pressure to settled fair, and then be greatly astonished that it continued raining." "The price of labour will express, clearly, the wants of the society respecting population;" it will be just sufficient to support the population, which at that time the state of the funds for the maintenance of labourers, requires. If the labourer's wages were before only adequate to supply the requisite population, they will, after the tax, be inadequate to that supply, for he will not have the same funds to expend on his family. Labour will therefore rise, because the demand continues, and it is only by raising the price, that the supply is not checked.