years, questions of quantity only, with little reference to cost of production. More especially is this the case when, as at the present time, many new sources of supply have been simultaneously opened, most of them practicable by labor alone, without any capital in advance beyond a pickaxe and a week's food, and when the operations are as yet wholly experimental, the comparative permanent productiveness of the different sources being entirely unascertained.
For the facts in regard to the production of the precious metals, see the investigation by Dr. Adolf Soetbeer,230 from which Chart IX has been taken. It is worthy of careful study. The figures in each period, at the top of the respective spaces, give the average annual production during those years. The last period has been added by me from figures taken from the reports of the Director of the United States Mint. Other accessible sources, for the production of the precious metals, are the tables in the appendices to the Report of the Committee to the House of Commons on the “Depreciation of Silver” (1876); the French official Procès-Verbaux of the International Monetary Conference of 1881, which give Soetbeer's figures to a later date than his publication above mentioned; the various papers in the British parliamentary documents; and the reports of the director of our mint. Since 1850 more gold has been produced than in the whole period preceding, from 1492 to 1850. Previous to 1849 the annual average product of gold, out of the total product of both gold and silver, was thirty-six per cent; for the twenty-six years ending in 1875, it has been seventy and one half per cent. The result has been a rise in gold prices certainly down to 1862,231 as shown by the following chart. [pg 308] It will be observed how much higher the prices rose during the depression after 1858 than it was during a period of similar conditions after 1848. The result, it may be said, was predicted by Chevalier.232