process of circulation, being direct barter. Gold, at the source of its production, is a commodity like any other commodity. Its relative value and that of iron or of any other commodity is expressed here in quantities in which they are mutually exchanged. But in the process of circulation this operation is implied, the value of gold being already given in the prices of commodities. Nothing can, therefore, be more erroneous than the idea that gold and commodity enter into the relation of direct barter within the process of circulation and that their relative values are ascertained through their exchange as simple commodities. The illusion that gold is bartered as a simple commodity for other commodities in the process of circulation is due to the fact that prices represent equations in which certain quantities of commodities are made equal to certain quantities of gold, i. e., that the commodities are made to relate to gold in its capacity of money, as a universal equivalent, and, therefore, appear to be directly exchangeable for it. In so far as the price of a commodity is realized in gold, it is exchanged for gold as a commodity, as a particular embodiment of labor-time; but in so far as it is the price that is realized in gold, the commodity is exchanged for gold in its capacity of money and not of a commodity, i. e., it is exchanged for gold as a universal embodiment of labor-time. But in either case the quantity of gold for which the commodity is exchanged in the process of circulation is not determined by exchange, but the exchange is determined by the price of the commodity, i. e., by its exchange
Within the process of circulation gold appears in everybody’s hands as the result of sale C—M. But since C—M, sale, is at the same time M—C, purchase, it is apparent that while C, the commodity from which the process starts, is passing through its first metamorphosis, another commodity, which confronts it as the opposite pole M, is completing its second metamorphosis and is, therefore, passing through the second phase of circulation, while the first commodity is still in the first phase of its course.
As a result of the first phase of circulation, the sale, we