Gold And Silver. The consumption of gold and silver for coinage and household purposes is enormous, its application having increased rapidly since the discoveries of gold in California and Australia. The amount of gold and silver annually taken from the mines of Europe is valued at $25,000,000. In America the yield is computed to be $146,000,000, and Asia produces $25,000,000. Africa has no silver mines, but produces gold to the amount of nearly $3,000,000. Australia is also without silver, but produces gold to the large amount of $200,000,000. The whole sum extracted since the earliest time is worth some $25,530,000,000. The increase in the production of gold and silver is enormous, and we shall, at the present rate, gain more in this respect, in fifty years, thanour ancestors did in fifty centuries.