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one requires a greater proportional amount of labour for growing the produce, the other for carrying it to market. If the land A yields a thousand quarters of wheat, to a given outlay in wages, manure, &c., and in order to raise another thousand recourse must be had to the land B, which is either less fertile or more distant from the market, the two thousand quarters will cost more than twice as much labour as the original thousand, and the produce of agriculture will be increased in a less ratio than the labour employed in procuring it. Instead of cultivating the land B, it would be possible, by higher cultivation, to make the land A produce more. It might be ploughed or harrowed twice instead of once, or three times instead of twice; it might be dug instead of being ploughed; after ploughing, it might be gone over with a hoe instead of a harrow, and the soil more completely pulverized; it might be oftener or more thoroughly weeded ; the implements used might be of higher finish, or more elaborate construction; a greater quantity or more expensive kinds of manure might be applied, or when applied, they might be more carefully mixed and incorporated with the soil. These are some of the modes by which the same land may be made to yield a greater produce; and when a greater produce must be had, some of these are among the means usually employed for obtaining it. But, that it is obtained at a more than proportional increase of expense, is evident from the fact that inferior lands are cultivated. Inferior lands, or lands at a greater distance from the market, of course yield an inferior return, and an increasing demand cannot be supplied from them unless at an augmentation of cost, and therefore of price. If the additional demand could continue to be supplied from the superior lands, by applying additional labour and capital, at no greater proportional cost than that at which they yield the quantity first demanded of them, the owners or farmers of those lands could undersell all others, and engross the whole market. Lands of a lower degree of fertility or in a more remote situation, might indeed be cultivated by their proprietors, for the sake of subsistence or independence; but it never could be the interest of any one to farm them for profit. That a profit can be made from them, sufficient to attract capital to such an investment, is a proof that cultivation on the more eligible lands has reached a point, beyond which any greater application of labour and capital would yield, at the best, no greater return than can be obtained at the same expense from less fertile or less favourably situated lands. The careful cultivation of a well-farmed district of England or Scotland is a symptom and an effect of the more unfavourable terms which the land has begun to exact for any increase of its fruits. Such elaborate cultivation costs much more in proportion, and requires a higher price to render it profitable, than farming on a more superficial system; and would not be adopted if access could be had to land of equal fertility, previously unoccupied. Where there is the choice of raising the increasing supply which society requires, from fresh land of as good quality as that already cultivated, no attempt is made to extract from land anything approaching to what it will yield on what are esteemed the best European modes of cultivating. The land is tasked up to the point at which the greatest return is obtained in proportion to the labour employed, but no further: any additional labour is carried elsewhere. “It is long,” says a late traveller in the United States,” “before an English eye becomes reconciled to the lightness of the crops and the careless farming (as we should call it) which is apparent. One forgets that where land is so plentiful and labour so dear as it is here, a totally different principle must be pursued to that which prevails in populous countries, and that the consequence will of course be a want of tidiness, as it were, and finish, about everything which requires labour.” Of the two causes mentioned, the plentifulness of land seems to me the true explanation, rather than the dearness of labour; for, however dear labour may be, when food is wanted, labour will always be applied to producing it in preference to anything else. But this labour is more effective for its end by being applied to fresh soil, than if it were employed in bringing the soil already occupied into higher cultivation. Only when no soils remain to be broken up but such as either from distance or inferior quality require a considerable rise of price to render their cultivation profitable, can it become advantageous to apply the high farming of Europe to any American lands; except, perhaps, in the immediate vicinity of towns, where saving in cost of carriage may compensate for great inferiority in the return from the soil itself. As American farming is to English, so is the ordinary English to that of Flanders, Tuscany, or the Terra di Lavoro; where by the application of a far greater quantity of labour there is obtained a considerably larger gross produce, but on such terms as would never be advantageous to a mere speculator for profit, unless made so by much higher prices of agricultural produce. The principle which has now been stated must be received, no doubt, with certain explanations and limitations. Even after the land is so highly cultivated that the mere application of additional labour, or of an additional amount of ordinary dressing, would yield no return proportioned to the expense, it may still happen that the application of a much greater additional labour and capital to improving the soil itself, by draining or permanent manures, would be as liberally remunerated by the produce, as any portion of the labour and capital already employed. It would sometimes be much more amply remunerated. This could not be, if capital always sought and found the most advantageous employment; but if the most advantageous employment has to wait longest for its remuneration, it is only in a rather advanced stage of industrial development that the preference will be given to it ; and even in that advanced stage, the laws or usages connected with property in land and the tenure of farms, are often such as to prevent the disposable capital of the country from flowing freely into the channel of agricultural improvement: and hence the increased supply, required by increasing population, is sometimes raised at an augmenting cost by higher cultivation, when the means of producing it without increase of cost are known and accessible. There can be no doubt, that if capital were forthcoming to execute, within the next year, all known and recognised improvements in the land of the United Kingdom which would pay at the existing prices, that is, which would increase the produce in as great or a greater ratio than the expense; the result would be such (especially if we include Ireland in the supposition) that inferior land would not for a long time require to be brought under tillage: probably a considerable part of the less productive lands now cultivated, which are not particularly favoured by situation, would go out of culture; or (as the improvements in question are not so much applicable to good land, but operate rather by converting bad land into good) the contraction of cultivation might principally take place by a less high dressing and less elaborate tilling of land generally; a falling back to something nearer the character of American farming; such only of the poor lands being altogether abandoned as were not found susceptible of improvement. And thus the aggregate produce of the whole cultivated land would bear a larger proportion than before to the labour expended on it; and the general law of diminishing return from land would have undergone, to that extent, a temporary supersession. No one, however, can suppose that even in these circumstances, the whole produce required for the country could be raised exclusively from the best lands, together with those possessing advantages of situation to place them on a par with the best. Much would undoubtedly continue to be produced under less advantageous conditions, and with a smaller proportional return, than that obtained from the best soils and situations. And in proportion as the further increase of population required a still greater addition to the supply, the general law would resume its course, and the further augmentation would be obtained at a more than proportionate expense of labour and capital.
* Letters from America, by John Robert Godley, vol. i. p. 42. See also Lyell's Travels in America, vol. ii. p. 83.
§ 3. That the produce of land increases, catteris paribus, in a diminishing ratio to the increase in the labour employed, is, as we have said, (allowing for occasional and temporary exceptions,) the universal law of agricultural industry. This principle, however, has been denied, and experience confidently appealed to, in proof that the returns from land are not less, but greater, in an advanced, than in an early, stage of cultivation—when much capital, than when little, is applied to agriculture. So much so, indeed, that (it is affirmed) the worst land now in cultivation produces as much food per acre, and even as much to a given amount of labour, as our ancestors contrived to extract from the richest soils in England.
It is very possible that this may be true; and even if not true to the letter, to a great extent it certainly is so. Unquestionably a much smaller proportion of the population is now occupied in producing food for the whole, than in the early times of our history. This, however, does not prove that the law of which we have been speaking does not exist, but only that there is some antagonizing principle at work, capable for a time of making head against the law. Such an agency there is, in habitual antagonism to the law of diminishing return from land; and to the consideration of this we shall now proceed. It is no other than the progress of civilization. I use this general and somewhat vague expression, because the things to be included are so various, that hardly any term of a more restricted signification would comprehend them all.
Of these, the most obvious is the progress of agricultural