The two forms which have so far distinguished money from the circulating medium are those of _suspended coin_ and of the _hoard_. The temporary transformation of coin into money in the case of the former means that the second phase of C―M―C, namely purchase M―C, must break up within a certain sphere of circulation into a series of successive purchases. As to hoarding, it is simply based on the isolation of the act C―M when it does not immediately pass into M―C, or is but an independent development of the first metamorphosis of a commodity; it represents money as the result of the alienation of all commodities in contradistinction to the medium of circulation as the embodiment of commodities in their always alienable form. Coin reserves and hoards are money only as non-circulating mediums and are non-circulating mediums only because they do not circulate. In the capacity in which we consider money now, it circulates or enters circulation, but does not perform the function of a circulating medium. As a medium of circulation money is always a means of purchase, now it does not act in that capacity. As soon as money develops through the process of hoarding into the embodiment of abstract social wealth and the tangible representative of material wealth, it assumes in that capacity special functions within the process of circulation. If money circulates merely as a medium of circulation and therefore as a means of purchase, it is understood that commodity and money confront each other at the same time, i. e., that the same value is present in a double form: at one pole, as a commodity in the hands of the seller; at the other pole as money in the hands of the buyer. This simultaneous existence of the two equivalents at opposite poles and their simultaneous change of places or mutual alienation presupposes in its turn that seller and buyer enter into relations as owners of equivalents that are on hand. But in the course of time, the process of the metamorphosis of commodities which produces the different forms of money, transforms also the owners of commodities or changes the character in which they appear before each other in the community. In the process of metamorphosis of the commodity the guardian of the latter changes his skin as often as the commodity changes place or as the money assumes new forms. Thus, the owners of commodities originally confronted each other only as commodity owners, but later on they became one a buyer, the other a seller; then each became alternately buyer and seller, then hoarders, and finally rich men. In that manner, the owners of commodities do not come out of the process of circulation the same men that they entered. In fact the different forms which money assumes in the process of circulation are but crystallized changes of form of the commodities themselves, which in their turn are but concrete expressions of the changing social relations in which commodity owners carry on the