Strona 659 z 2651

So far as their quantity in any particular country depends upon

the latter of those two circumstances (the fertility or

barrenness of the mines which happen to supply the commercial

world), their real price, the real quantity of labour and

subsistence which they will purchase or exchange for, will, no

doubt, sink more or less in proportion to the fertility, and rise

in proportion to the barrenness of those mines.