In the titles of my chapters, I rather seek to communicate a rough idea of the subject than a correct one. In truth and in reason, there is no such thing as a country actually peopled to the full, if by this term numbers only are meant, without considering the proportion they bear to the consumption they make of the productions of their country. I have in a former chapter established a distinction between the physical and moral impossibility of increasing numbers. As to the physical impossibility, the case can hardly exist, because means of procuring subsistence from other countries, when the soil refuses to give more, seem, if not inexhaustible, at least very extensive. A country therefore fully peopled, that is, in a physical impossibility of increasing their numbers, is a chimerical and useless supposition. The subject here under consideration is, the situation of a people, who find it their interest to seek for subsistence from abroad. This may happen, and commonly does, long before the country itself is fully improved: it decides nothing as to the intrinsic fertility of the soil, and proves no more, than that the industry of the free hands has made a quicker progress in multiplying mouths, than that of the farmers in providing subsistence. To illustrate this idea, let me propose the following question. Is multiplication the efficient cause of agriculture, or is agriculture that of multiplication? I answer, that multiplication is the efficient cause of agriculture, though I allow, that, in the infancy of society, the spontaneous fruits of the earth, which are free to all, are the efficient cause of a multiplication, which may rise to the exact proportion of them; as has been said above. This must be explained.