Countries are populous, not in proportion to the number of people whom their produce can clothe and lodge, but in proportion to that of those whom it can feed. When food is provided, it is easy to find the necessary clothing and lodging. But though these are at hand, it may often be difficult to find food. In some parts of the British dominions, what is called a house may be built by one day's labour of one man. The simplest species of clothing, the skins of animals, require somewhat more labour to dress and prepare them for use. They do not, however, require a great deal. Among savage or barbarous nations, a hundredth, or little more than a hundredth part of the labour of the whole year, will be sufficient to provide them with such clothing and lodging as satisfy the greater part of the people. All the other ninety-nine parts are frequently no more than enough to provide them with food.
But when, by the improvement and cultivation of land, the labour of one family can provide food for two, the labour of half the society becomes sufficient to provide food for the whole. The other half, therefore, or at least the greater part of them, can be employed in providing other things, or in satisfying the other wants and fancies of mankind. Clothing and lodging, household furniture, and what is called equipage, are the principal objects of the greater part of those wants and fancies. The rich man consumes no more food than his poor neighbour. In quality it may be very different, and to select and prepare it may require more labour and art; but in quantity it is very nearly the same. But compare the spacious palace and great wardrobe of the one, with the hovel and the few rags of the other, and you will be sensible that the difference between their clothing, lodging, and household furniture, is almost as great in quantity as it is in quality. The desire of food is limited in every man by the narrow capacity of the human stomach; but the desire of the conveniencies and ornaments of building, dress, equipage, and household furniture, seems to have no limit or certain boundary. Those, therefore, who have the command of more food than they themselves can consume, are always willing to exchange the surplus, or, what is the same thing, the price of it, for gratifications of this other kind. What is over and above satisfying the limited desire, is given for the amusement of those desires which cannot be satisfied, but seem to be altogether endless. The poor, in order to obtain food, exert themselves to gratify those fancies of the rich; and to obtain it more certainly, they vie with one another in the cheapness and perfection of their work. The number of workmen increases with the increasing quantity of food, or with the growing improvement and cultivation of the lands; and as the nature of their business admits of the utmost subdivisions of labour, the quantity of materials which they can work up, increases in a much greater proportion than their numbers. Hence arises a demand for every sort of material which human invention can employ, either usefully or ornamentally, in building, dress, equipage, or household furniture; for the fossils and minerals contained in the bowels of the earth, the precious metals, and the precious stones.
Food is, in this manner, not only the original source of rent, but every other part of the produce of land which afterwards affords rent, derives that part of its value from the improvement of the powers of labour in producing food, by means of the improvement and cultivation of land.
Those other parts of the produce of land, however, which afterwards afford rent, do not afford it always. Even in improved and cultivated countries, the demand for them is not always such as to afford a greater price than what is sufficient to pay the labour, and replace, together with its ordinary profits, the stock which must be employed in bringing them to market. Whether it is or is not such, depends upon different circumstances.
Whether a coal mine, for example, can afford any rent, depends partly upon its fertility, and partly upon its situation.
A mine of any kind may be said to be either fertile or barren, according as the quantity of mineral which can be brought from it by a certain quantity of labour, as greater or less than what can be brought by an equal quantity from the greater part of other mines of the same kind.
Some coal mines, advantageously situated, cannot be wrought on account of their barrenness. The produce does not pay the expense. They can afford neither profit nor rent.
There are some, of which the produce is barely sufficient to pay the labour, and replace, together with its ordinary profits, the stock employed in working them. They afford some profit to the undertaker of the work, but no rent to the landlord. They can be wrought advantageously by nobody but the landlord, who, being himself the undertaker of the work, gets the ordinary profit of the capital which he employs in it. Many coal mines in Scotland are wrought in this manner, and can be wrought in no other. The landlord will allow nobody else to work them without paying some rent, and nobody can afford to pay any.
Other coal mines in the same country, sufficiently fertile, cannot be wrought on account of their situation. A quantity of mineral, sufficient to defray the expense of working, could be brought from the mine by the ordinary, or even less than the ordinary quantity of labour: but in an inland country, thinly inhabited, and without either good roads or water-carriage, this quantity could not be sold.
Coals are a less agreeable fuel than wood: they are said too to be less wholesome. The expense of coals, therefore, at the place where they are consumed, must generally be somewhat less than that of wood.
The price of wood, again, varies with the state of agriculture, nearly in the same manner, and exactly for the same reason, as the price of cattle. In its rude beginnings, the greater part of every country is covered with wood, which is then a mere incumbrance, of no value to the landlord, who would gladly give it to any body for the cutting. As agriculture advances, the woods are partly cleared by the progress of tillage, and partly go to decay in consequence of the increased number of cattle. These, though they do not increase in the same proportion as corn, which is altogether the acquisition of human industry, yet multiply under the care and protection of men, who store up in the season of plenty what may maintain them in that of scarcity; who, through the whole year, furnish them with a greater quantity of food than uncultivated nature provides for them; and who, by destroying and extirpating their enemies, secure them in the free enjoyment of all that she provides. Numerous herds of cattle, when allowed to wander through the woods, though they do not destroy the old trees, hinder any young ones from coming up; so that, in the course of a century or two, the whole forest goes to ruin. The scarcity of wood then raises its price. It affords a good rent; and the landlord sometimes finds that he can scarce employ his best lands more advantageously than in growing barren timber, of which the greatness of the profit often compensates the lateness of the returns. This seems, in the present times, to be nearly the state of things in several parts of Great Britain, where the profit of planting is found to be equal to that of either corn or pasture. The advantage which the landlord derives from planting can nowhere exceed, at least for any considerable time, the rent which these could afford him; and in an inland country, which is highly cultivated, it will frequently not fall much short of this rent. Upon the sea-coast of a well-improved country, indeed, if coals can conveniently be had for fuel, it may sometimes be cheaper to bring barren timber for building from less cultivated foreign countries than to raise it at home. In the new town of Edinburgh, built within these few years, there is not, perhaps, a single stick of Scotch timber.
Whatever may be the price of wood, if that of coals is such that the expense of a coal fire is nearly equal to that of a wood one, we may be assured, that at that place, and in these circumstances, the price of coals is as high as it can be. It seems to be so in some of the inland parts of England, particularly in Oxfordshire, where it is usual, even in the fires of the common people, to mix coals and wood together, and where the difference in the expense of those two sorts of fuel cannot, therefore, be very great. Coals, in the coal countries, are everywhere much below this highest price. If they were not, they could not bear the expense of a distant carriage, either by land or by water. A small quantity only could be sold; and the coal masters