maintain more workers, and to turn out more means of production merely to keep this surplus of workers occupied. Admittedly, as far as the individual capitalist is concerned, the worker is just as good a consumer, i.e. purchaser of his commodity, as another capitalist or anyone else, provided that he can pay. Every individual capitalist realises his surplus value in the price of his commodity, whether he sells it to the worker or to some other buyer. But this does not hold true from the point of view of the capitalist class as a whole. The working class in general receives from the capitalist class no more than an assignment to a determinate part of the social product, precisely to the extent of the variable capital. The workers buying consumer goods therefore merely refund to the capitalist class the amount of the wages they have received, their assignment to the extent of the variable capital. They cannot return a groat more than that; and if they are in a position to save in order to make themselves independent as small entrepreneurs, they may even return less, though this is the exception. Part of the surplus value is consumed by the capitalist class itself in form of consumer goods, the money exchanged for these being retained in the capitalists' pockets. But who can buy the products incorporating the other, the capitalised part of the surplus value? Partly the capitalists themselves--the diagram answers--who need new means of production for the purpose of expanding production, and partly the new workers who will be needed to work these new means of production. But that implies a previous capitalist incentive to enlarge production; if new workers are set to work with new means of production, there must have been a new demand for the products which are to be turned out. Perhaps the answer is that the natural increase of the population creates this growing demand. In fact, the growth of the population and its needs provided the starting point for our examination of enlarged reproduction in an hypothetical socialist society. There the requirements of society could serve as an adequate basis, since the only purpose of production was the satisfaction of wants. In a capitalist society, however, the matter is rather different. What kind of people are we thinking of when we speak of an increase in the population? There are only two classes of the population according to Marx's diagram, the capitalists and the workers. The natural increase of the former is already catered for by that part of the surplus value which is consumed inasmuch as it increases in absolute quantity. In any case, it cannot be the capitalists who consume the remainder, since capitalist consumption of the entire surplus value would mean a reversion to simple reproduction. That leaves the workers, their class also growing by natural increase. Yet a capitalist economy is not interested in this increase for its own sake, as a starting point of growing needs.