are to find employment on the same land, they cannot without an unexampled succession of agricultural inventions continue doubling the produce; therefore, if wages do not fall, profits must; and when profits fall, increase of capital is slackened. Besides, even if wages did not fall, the price of food (as will be shown more fully hereafter) would in these circumstances necessarily rise; which is equivalent to a fall of wages.
Except, therefore, in the very peculiar cases which I have just noticed, of which the only one of any practical importance is that of a new colony, or a country in circumstances equivalent to it; it is impossible that population should increase at its utmost rate without lowering wages. Nor will the fall be stopped at any point, short of that which either by its physical or its moral operation, checks the increase of population. In no old country, therefore, does population increase at anything like its utmost rate; in most, at a very moderate rate: in some countries, not at all. These facts are only to be accounted for in two ways. Either the whole number of births which nature admits of, and which happen in some circumstances, do not take place; or if they do, a large proportion of those who are born, die. The retardation of increase results either from mortality or prudence; from Mr. Malthus's positive, or from his preventive check: and one or the other of these must and does exist, and very powerfully too, in all old societies. Wherever population is not kept down by the prudence either of individuals or of the state, it is kept down by starvation or disease.
Mr. Malthus has taken great pains to ascertain, for almost every country in the world, which of these checks it is that operates; and the evidence which he collected on the subject, in his Essay on Population, may even now be read with advantage. Throughout Asia, and formerly in most European countries in which the labouring classes were not in personal bondage, there is, or was, no restrainer of population
