necessary connection between commodity and money.65
2. THE MEDIUM OF CIRCULATION.
After the commodity has received in the process of price determination the form in which it becomes capable of circulation, and after gold has acquired the character of money in the same process, circulation will both present and solve the contradictions which are inherent in the process of exchange of commodities. The actual exchange of commodities, i. e., the social interchange of matter consists of a change of form in which is unfolded the double character of the commodity as use-value and exchange value, and at the same time its own change of form is crystallized in distinct forms of money. To describe this change of form is to describe circulation. As we have seen, given a world of commodities and with it a system of division of labor, commodity is but a developed form of exchange value; in the same manner, circulation implies a steady stream of exchange transactions which are being continually renewed on all sides. The second assumption we make is that commodities enter the process of exchange with a definite price or that they appear to each other in that