Taxes upon the produce of land are in reality taxes upon the rent; and though they may be originally advanced by the farmer, are finally paid by the landlord. When a certain portion of the produce is to be paid away for a tax, the farmer computes, as well as he can, what the value of this portion is, one year with another, likely to amount to, and he makes a proportionable abatement in the rent which he agrees to pay to the landlord. There is no farmer who does not compute beforehand what the church tythe, which is a land-tax of this kind, is, one year with another, likely to amount to.

The tythe, and every other land-tax of this kind, under the appearance of perfect equality, are very unequal taxes; a certain portion of the produce being, in different situations, equivalent to a very different portion of the rent. In some very rich lands the produce is so great, that the one half of it is fully sufficient to replace to the farmer his capital employed in cultivation, together with the ordinary profits of farming stock in the neighbourhood. The other half, or, what comes to the same thing, the value of the other half, he could afford to pay as rent to the landlord, if there was no tythe. But if a tenth of the produce is taken from him in the way of tythe, he must require an abatement of the fifth part of his rent, otherwise he cannot get back his capital with the ordinary profit. In this case the rent of the landlord, instead of amounting to a half, or five-tenths of the whole produce, will amount only to four-tenths of it. In poorer lands, on the contrary, the produce is sometimes so small, and the expence of cultivation so great, that it requires four-fifths of the whole produce to replace to the farmer his capital with the ordinary profit. In this case, though there was no tythe, the rent of the landlord could amount to no more than one-fifth or two-tenths of the whole produce. But if the farmer pays one-tenth of the produce in the way of tythe, he must require an equal abatement of the rent of the landlord, which will thus be reduced to one-tenth only of the whole produce. Upon the rent of rich lands, the tythe may sometimes be a tax of no more than one-fifth part, or four shillings in the pound; whereas upon that of poorer lands, it may sometimes be a tax of one-half, or of ten shillings in the pound.

The tythe, as it is frequently a very unequal tax upon the rent, so it is always a great discouragement both to the improvements of the landlord and to the cultivation of the farmer. The one cannot venture to make the most important, which are generally the most expensive improvements; nor the other to raise the most valuable, which are generally too the most expensive crops; when the church, which lays out no part of the expence, is to share so very largely in the profit. The cultivation of madder was for a long time confined by the tythe to the United Provinces, which, being presbyterian countries, and upon that account exempted from this destructive tax, enjoyed a sort of monopoly of that useful dying drug against the rest of Europe. The late attempts to introduce the culture of this plant into England, have been made only in consequence of the statute which enacted that five shillings an acre should be received in lieu of all manner of tythe upon madder.

As through the greater part of Europe, the church, so in many different countries of Asia, the state, is principally supported by a land-tax, proportioned, not to the rent, but to the produce of the land. In China, the principal revenue of the sovereign consists in a tenth part of the produce of all the lands of the empire. This tenth part, however, is estimated so very moderately, that, in many provinces, it is said not to exceed a thirtieth part of the ordinary produce. The land-tax or land-rent which used to be paid to the Mahometan government of Bengal, before that country fell into the hands of the English East India company, is said to have amounted to about a fifth part of the produce. The land-tax of ancient Egypt is said likewise to have amounted to a fifth part.

In Asia, this sort of land-tax is said to interest the sovereign in the improvement and cultivation of land. The sovereigns of China, those of Bengal while under the Mahometan government, and those of ancient Egypt, are said accordingly to have been extremely attentive to the making and maintaining of good roads and navigable canals, in order to increase, as much as possible, both the quantity and value of every part of the produce of the land, by procuring to every part of it the most extensive market which their own dominions could afford. The tythe of the church is divided into such small portions, that no one of its proprietors can have any interest of this kind. The parson of a parish could never find his account in making a road or canal to a distant part of the country, in order to extend the market for the produce of his own particular parish. Such taxes, when destined for the maintenance of the state, have some advantages which may serve in some measure to balance their inconveniency. When destined for the maintenance of the church, they are attended with nothing but inconveniency.

Taxes upon the produce of land may be levied, either in kind; or, according to a certain valuation, in money.

The parson of a parish, or a gentleman of small fortune who lives upon his estate, may sometimes, perhaps, find some advantage in receiving, the one his tythe, and the other his rent, in kind. The quantity to be collected, and the district within which it is to be collected, are so small, that they both can oversee, with their own eyes, the collection and disposal of every part of what is due to them. A gentleman of great fortune, who lived in the capital, would be in danger of suffering much by the neglect, and more by the fraud of his factors and agents, if the rents of an estate in a distant province were to be paid to him in this manner. The loss of the sovereign, from the abuse and depredation of his tax-gatherers, would necessarily be much greater. The servants of the most careless private person are, perhaps, more under the eye of their master than those of the most careful prince; and a public revenue, which was paid in kind, would suffer so much from the mismanagement of the collectors, that a very small part of what was levied upon the people would ever arrive at the treasury of the prince. Some part of the public revenue of China, however, is said to be paid in this manner. The Mandarins and other tax-gatherers will, no doubt, find their advantage in continuing the practice of a payment which is so much more liable to abuse than any payment in money.

A tax upon the produce of land which is levied in money, may be levied either according to a valuation which varies with all the variations of the market price; or according to a fixed valuation, a bushel of wheat, for example, being always valued at one and the same money price, whatever may be the state of the market. The produce of a tax levied in the former way, will vary only according to the variations in the real produce of the land according to the improvement or neglect of cultivation. The produce of a tax levied in the latter way will vary, not only according to the variations in the produce of the land, but according to both those in the value of the precious metals, and those in the quantity of those metals which is at different times contained in coin of the same denomination. The produce of the former will always bear the same proportion to the value of the real produce of the land. The produce of the latter may, at different times, bear very different proportions to that value.

When, instead either of a certain portion of the produce of land, or of the price of a certain portion, a certain sum of money is to be paid in full compensation for all tax or tythe; the tax becomes, in this case, exactly of the same nature with the land-tax of England. It neither rises nor falls with the rent of the land. It neither encourages nor discourages improvement. The tythe in the greater part of those parishes which pay what is called a modus in lieu of all other tythe, is a tax of this kind. During the Mahometan government of Bengal, instead of the payment in kind of the fifth part of the produce, a modus, and, it is said, a very moderate one, was established in the greater part of the districts or zemindaries of the country. Some of the servants of the East India company, under pretence of restoring the public revenue to its proper value, have, in some provinces, exchanged this modus for a payment in kind. Under their management this change is likely both to discourage cultivation, and to give new opportunities for abuse in the collection of the public revenue, which has fallen very much below what it was said to have been, when it first fell under the management of the company. The servants of the company may, perhaps, have profited by this change, but at the expence, it is probable, both of their masters and of the country.