Such indestructibility and facility of being tested are united in gold; its intrinsic value is great, and its imaginary value is greater; so that, partly through indolence, partly through necessity and want of organization, most nations have agreed to take gold for the only basis of their currencies;--with this grave disadvantage, that its portability enabling the metal to become an active part of the medium of exchange, the stream of the currency itself becomes opaque with gold--half currency and half commodity, in unison of functions which partly neutralize, partly enhance each other's force. They partly neutralize, since in so far as the gold is commodity, it is bad currency, because liable to sale; and in so far as it is currency, it is bad commodity, because its exchange value interferes with its practical use. Especially its employment in the higher branches of the arts becomes unsafe on account of its liability to be melted down for exchange. Again. They partly enhance, since in so far as the gold has acknowledged intrinsic value, it is good currency, because everywhere acceptable; and in so far as it has legal exchangeable value, its worth as a commodity is increased. We want no gold in the form of dust or crystal; but we seek for it coined because in that form it will pay baker and butcher. And this worth in exchange not only absorbs a large quantity in that use,[88] but greatly increases the effect on the imagination of the quantity used in the arts. Thus, in brief, the force of the functions is increased, but their precision blunted, by their unison. [88] The waste of labour in obtaining the gold, though it cannot be estimated by help of any existing data, may be understood in its bearing on entire economy by supposing it limited to transactions between two persons. If two farmers in Australia have been exchanging corn and cattle with each other for years, keeping their accounts of reciprocal debt in any simple way, the sum of the possessions of either would not be diminished, though the part of it which was lent or borrowed were only reckoned by marks on a stone, or notches on a tree; and the one counted himself accordingly, so many scratches, or so many notches, better than the other. But it would soon be seriously diminished if, discovering gold in their fields, each resolved only to accept golden counters for a reckoning; and accordingly, whenever he wanted a sack of corn or a cow, was obliged to go and wash sand for a week before he could get the means of giving a receipt for them.