to the quantity of gold it contains multiplied by the number of its moves. Besides the actual importance which a coin possesses by virtue of its being an individual piece of gold of a definite weight, it acquires an ideal significance due to its function. But whether the sovereign circulates once or ten times, in each particular purchase or sale it acts only as one sovereign. It is like a general who by timely appearance at ten different points on the battle field does the work of ten generals, but still remains the same identical general at each point. The idealization of the means of circulation which is due to the supplanting of quantity by rapidity in money circulation, affects only the function of the coin within the sphere of circulation, but not the nature of the individual coin.
The circulation of money is a movement through the outside world, and the sovereign, though it non olet, keeps rather mixed company. In the course of its friction against all kinds of hands, pouches, pockets, purses, money-belts, bags, chests and strong-boxes, the coin rubs off, loses one gold atom here and another one there and thus, as it wears off in its wanderings over the world, it loses more and more of its intrinsic substance. By being used it gets used up. Let us take up a sovereign at the moment when its natural, inborn character has been slightly affected. A baker, says Dodd,76 who receives from the bank to-day a brand new sovereign and pays it to-morrow to the miller, does not pay the same veritable sovereign; the latter has become lighter than it was at the time he received it. It is clear, says an anonymous writer,77 that in the very nature of things, coins must depreciate one by one as a result of ordinary and unavoidable friction. It is a physical impossibility to entirely exclude light coins from circulation at any time, even for one day. Jacob estimates that of the 380 million pounds sterling which were in existence in Europe in 1809, nineteen million pounds sterling entirely disappeared by 1829, i. e., within a period of twenty years.78 Thus, while a commodity at its first step into the sphere of circulation, falls out of it, a