Assuming it, then, as certain that for a very long period, and for many successive generations, a vast addition is to be made to the annual supply of the metallic treasures of the earth, it becomes of the highest importance to the interests of industry in all its branches, agricultural, commercial, and manufacturing, to consider what _the effects of the change_ thus induced must be--what benefits it will confer upon mankind--what dangers, if any, it will remove, especially in the great commercial community in which we are placed. And a little consideration must be sufficient to demonstrate to every impartial and disinterested mind what these effects will be--and to prevent, on the one hand, chimerical or unfounded hopes being formed, and, on the other, undue or unmanly depression from the effects of recent calamities being felt. Fortunately we are not driven to theory or speculation to ascertain what these effects will be--experience, the only sure guide in political science, points to them with unerring certainty: the great monetary revolution of the sixteenth century is the precursor and the monitor of that of the nineteenth. The first effect of a great addition being made to the annual supply of a particular metal in general use and high estimation all over the world, is that the exchangeable value of _that metal_, in comparison with other metals or articles of consumption, will undergo an immediate alteration, which will prove lasting and considerable if the increased supply turns out to be great and permanent. This is no more than takes place every day with all the articles of commerce. According as the crop of wheat, or oats, or barley, or cotton proves abundant, so surely does the price of these articles rise or fall in the market. If gold is produced in much greater quantities than heretofore, its price, as compared with everything else, and in particular with the precious metal in common use, next to it in value, silver, must ere long change. If the increased supply proves very great, it may in time come to reduce the price of gold, as compared with silver, fifty, eighty, or even a hundred per cent. Gold is more valuable than silver, only because it is more scarce: if it becomes equally plentiful, its value will gradually sink; and if the quantity afloat in the earth should ever come to be as great as that of silver, it would come to be of no greater value. This effect may appear either in the fall of the value of gold as compared with silver, or notes exchangeable into gold, or in the _rise_ in the value of silver as compared with that of gold, or notes exchangeable into that metal. This effect has already taken place. Silver is 3 per cent dearer as compared with gold than it was a year ago: and this change will doubtless continue. This is the first and obvious effect of a great addition to the gold treasures of the earth; and even this is a considerable benefit; because, as it has been