circulation a seller for each buyer and the money which moves into the place of the commodity sold, before it came into the hands of the buyer, must have already changed places with another commodity. Sooner or later it again leaves the hands of the seller, who turns buyer, to pass into the hands of a new seller and this frequently repeated change of place forms the interlacing of the metamorphoses of commodities. The same coins are moving, some more, others less frequently, from one place in the sphere of circulation to another, always in the direction opposite to that of the commodities moved, thus describing a longer or shorter circulation-curve. The different movements of the same coin can follow each other in point of time only, and on the contrary, the many scattered purchases and sales which appear as so many separate changes of place between commodities and money, occur simultaneously separated only in point of space.
The circulation of commodities C—M—C in its elementary form is completely described in the transition of money from the hands of the buyer into those of the seller and from the hands of the latter, as soon as he has turned buyer, into those of a new seller. This completes the metamorphosis of the commodity and with it the movement of money in so far as that movement is the expression of the metamorphosis. But since new use-values are continually produced in the shape of new commodities and must thus be constantly thrown anew into circulation, the process C—M—C is repeatedly renewed by the same commodity owners. The money which they have spent as buyers gets back into their hands
