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Rh therefore to be examined under the three relations it bears to Place, Time, and Kind. 71. (1.) It gives claim to the return of equivalent wealth in any Place. Its use in this function is to save carriage, so that parting with a bushel of corn in London, we may receive an order for a bushel of corn at the Antipodes, or elsewhere. To be perfect in this use, the substance of currency must be to the maximum portable, credible, and intelligible. Its non-acceptance or discredit results always from some form of ignorance or dishonour: so far as such interruptions rise out of differences in denomination, there is no ground for their continuance among civilized nations. It may be convenient in one country to use chiefly copper for coinage, in another silver, and in another gold,—reckoning accordingly in centimes, francs, or zecchins: but that a franc should be different in weight and value from a shilling, and a zwanziger vary from both, is wanton loss of commercial power.

72. (2.) It gives claim to the return of equivalent wealth at any Time. In this second use, currency is the exponent of accumulation: