or fall in inverse ratio, and corresponding to that rise or fall of prices, the rapidity of circulation remaining the same, a larger or smaller quantity of gold would be required to keep the same volume of commodities in circulation. The same change would occur, if the old standard of value were superseded by a more or less valuable metal. Thus, Holland required from fourteen to fifteen times as much silver as it had previously required gold, in order to circulate the same volume of commodities, when out of tender regard for the government creditors and out of fear of the effects of the discoveries in California and Australia it substituted silver for gold money.
From the fact that the quantity of gold in circulation depends on the variable sum total of prices of commodities and the varying rapidity of circulation, it follows that the volume of the circulating medium must be capable of contraction and expansion; in short, that according to the requirements of circulation, gold must now enter, now leave the sphere of circulation in its capacity of a medium of circulation. How the circulation process itself realizes these conditions, we shall see later on.
c. COIN AND SYMBOLS OF VALUE.
In its capacity of a medium of circulation, gold acquires a shape of its own, it becomes coin. In order to prevent any technical difficulties in the way of its circulation, it is coined according to the standard of the money of account. Gold pieces whose imprints and legends show that they contain certain weights of gold
