Now, while it is unquestionably true that the increasing pressure of population which compels a resort to inferior points of production will raise rents, and does raise rents, I do not think that all the deductions commonly made from this principle are valid, nor yet that it fully accounts for the increase of rent as material progress goes on. There are evidently other causes which conspire to raise rent, but which seem to have been wholly or partially hidden by the erroneous views as to the functions of capital and genesis of wages which have been current. To see what these are, and how they operate, let us trace the effect of material progress upon the distribution of wealth.
The changes which constitute or contribute to material progress are three: (1) increase in population; (2) improvements in the arts of production and exchange; and (3) improvements in knowledge, education, government, police, manners, and morals, so far as they increase the power of producing wealth. Material progress, as commonly understood, consists of these three elements or directions of progression, in all of which the progressive nations have for some time past been advancing, though in different degrees. As, considered in the light of ma-
the Union and by the character of the land left out of cultivation in the older, is that the course of cultivation is from the better to the worse qualities of land. (3) That, whether the course of production be from the absolutely better to the absolutely worse lands or the reverse (and there is much to indicate that better or worse in this connection merely relates to our knowledge, and that future advances may discover compensating qualities in portions of the earth now esteemed most sterile), it is always, and from the nature of the human mind, must always tend to be, from land under existing conditions deemed better, to land under existing conditions deemed worse. (3) That Ricardo's law of rent does not depend upon the direction of the extension of cultivation, but upon the proposition that if land of a certain quality will yield something, land of a better quality will yield more.
