OCR Text |
Show The World's Mineral Wealth.' Mexican Financier. . Prof. J. vou Ehronworth gives the following statistics as representing tho average yearly production of the more important metals aud minerals during the last ton years throughout the world: Value in Quantity. i'l.OJO.OOU Coal 40fH million tons 1(13.7 iron 1U.6 million tons rS.8 Cold 13:.iS kllog 89 Silver kilog Lead 4M.(t tons .8 C iper Sj,siK) tons 10 Kino 3U9.W1 tons 4.8 Tin a,W tons 2.9 Salt 7,57t!,5(W tons n.S From the above figures it will be seen that the value of the earth's annual production pro-duction of coal and iron is nearly five times that of the gold and silver obtained ob-tained in the same time. |