Individual deliveries, in contrast with Distribution into the two basic categories, Wages and Rent, consist in the delivery of Wealth to individuals in proportion to the effective demands of each. Their demands are limitless, for when satisfied with quantity they naturally demand quality. But there is a limit to all effective demands. The limitation on the one hand is the producer’s ability to produce, and on the other the consumer’s ability to obtain in Trade. Ability to produce depends in high degree at any time upon the general productive knowledge of the time. Ability to obtain depends upon the Economic power in Trade of the individual seeking to gratify his wants. If he is isolated from all the rest of mankind, he is outside the Economic circle and can obtain only what he himself directly produces. If he is one of an absolutely free community, he can obtain what others are willing to give him in Trade for the service he renders directly or indirectly to them. If Production be arbitrarily obstructed, whether by impediments to Natural Resources or to Trade, his ability to obtain Wealth is not so much according to what he produces or to the service of any other kind that he renders, but according to his command over the sources of Production and the channels of Trade whereby he may levy tribute or escape it. As human services naturally tend to exchange at par for equally desirable human services, so do different forms of Wealth, each product of human service, tend to exchange at par for equally desirable forms of Wealth; and as Wealth in the Rent category and Wealth in the Wages category are alike service-products of Labor applied to Land, exchanges of every kind of Wealth tend to be effected on the basis of equality in the expenditure of Labor for their Production. Let it now be carefully observed and faithfully remembered in this connection, that however various the kind and the amount of Wealth that individuals receive, each variety is but a subdivision of Wealth as a whole, and is therefore either Wages or Rent, those being the two primary divisions of Wealth in Distribution. A “captain of industry” may get a large share of Wealth for his service while a skilled laborer gets a small share for his; but each will take his share from Wages, not from Rent. On the other hand, the owner of a rich mining opportunity may get a large share of Wealth and the owner of a small area of farming land or a village building-lot may get a small share; but each will in that respect get Rent, not Wages. To the extent, however, that the “captain of industry” derives any part of his income from Natural-Resource privileges, that part is Rent; and to the extent that the mine owner or the farm owner or the village lot owner derives any part of his from his service, that part is Wages.