The Wealth of Nations by Part 1 Chapter 11 Page 109

That in France the average price of grain was, in the same manner, much lower in the end of the fifteenth and beginning of the sixteenth century than in the two centuries preceding has been observed both by Mr. Dupre de St. Maur, and by the elegant author of the Essay on the police of grain. Its price, during the same period, had probably sunk in the same manner through the greater part of Europe.

This rise in the value of silver in proportion to that of corn, may either have been owing altogether to the increase of the demand for that metal, in consequence of increasing improvement and cultivation, the supply in the meantime continuing the same as before; or, the demand continuing the same as before, it may have been owing altogether to the gradual diminution of the supply; the greater part of the mines which were then