canon, though it should be equal at the time of its first establishment, necessarily becomes unequal in process of time, according to the unequal degrees of improvement or neglect in the cultivation of the different parts of the country. In England, the valuation according to which the different countries and parishes were assessed to the land-tax by the 4th of William and Mary was very unequal even at its first establishment. This tax, therefore, so far offends against the first of the four maxims above mentioned. It is perfectly agreeable to the other three. It is perfectly certain. The time of payment for the tax, being the same as that for the rent, is as convenient as it can be to the contributor though the landlord is in all cases the real contributor, the tax is commonly advanced by the tenant, to whom the landlord is obliged to allow it in the payment of the rent.