Hereafter the quantities of tungsten ore handled will be much smaller than during 1916, 1917 and 1918; and will be confined to peace-time needs unless some unforeseen war arises. England, according to government estimates about January, 1920, had two years’ supply, and France is probably as well supplied. The United States probably had on hand an equivalent of quite 8,000 tons of ore carrying 60 per cent. WO₃. Makers of tool steel figured on a consumption of 7,500 tons during 1919, but because of the lack of market for ore this was much too high; and probably 4,000 tons is large enough, so that there will likely be little market for new supplies for nearly two years, except as ore may be bought speculatively. During this time, mines everywhere must remain idle until a demand again arises, except for those mines required to furnish tungsten for Germany, Austria and Russia and the small quantity required by Sweden, Norway and Italy. If industries in Germany, Austria and Russia recover so that they can buy and use tungsten, Germany will have regained in the ores that will be eagerly offered by producing nations needing a market, a part of the trade she has lost. Traders of England, France and the United States will be glad to sell tungsten and ferrotungsten, but Germany will undoubtedly reach out for raw material in order that she may make as much use as possible of her abundant unemployed labor. Should a tariff law like that now proposed be passed, the United States will have cut off its foreign supplies and will have ended its control of any considerable part of them. However, should a high price be maintained, artificially or otherwise, the development of other alloy steels for use in multiple-edged tools may have reached a point where not so much tungsten will be needed.