_Canada._--Antimony production in Canada has been extremely irregular. During periods of high prices a considerable output was obtained, the years of maximum production being 1898, with shipments of 1,344 short tons of ore, and 1907, with 2,016 short tons. Mining ceased in 1910 and was not resumed until 1915. In 1915, 1,341 tons of 40 per cent. (metal content) ore were produced; in 1916, 885 tons of 42 per cent. ore; and 361 tons in 1917. The principal producing district is at West Gore, Nova Scotia, where the ore in addition to its antimony content has a tenor of 2 to 4 ounces of gold per ton. Other regions that have produced antimony ore are New Brunswick (York County), British Columbia, Quebec, and Yukon Territory. In British Columbia (Slocan District) and Yukon Territory (Chieftain Hills) antimonial lead ores are also worked. The Nova Scotia ores, which furnished the bulk of the production, have been exported to England since 1915; the earlier production went to Germany. The small production of refined antimony came chiefly as a by-product of lead refining at the smelter of the Consolidated Mining & Smelting Co., at Trail, B. C.; a small amount of antimony was also smelted from antimony ores by the New Brunswick Metals, Ltd. (formerly the Canadian Antimony Co.) at Lake George, N. B. Canada appears to be in about the same position as the United States with reference to antimony mining. High prices, continued over a long period, will bring out a considerable production, but no output is to be expected at peace-time prices. _Mexico._--Antimony deposits exist in many parts of Mexico and there has been a considerable production for many years. As in other countries, the output increased largely during 1915 and 1916. The production of metallic antimony for 1917 is reported as 2,141 metric tons. In 1914 there were exported to England 1,543 long tons of crude antimony and regulus; there were no exports to England in 1918, but 1,449 short tons of ore and 2,660 of metal were shipped to the United States. The principal mines are in the Sierra Catorce, in the states of San Luis Potosi and Queretaro. The ores are mixed sulphides and oxides and carry 5 to 50 per cent. antimony. A smelter with an annual capacity of 6,000 tons of metal was built at Wadley in 1900, and most of the production formerly went to England, but since 1915 has been marketed in the United States. The smelter and most important mines are owned by Cookson’s, of England, through a subsidiary, the Republican Mining & Metal Co. American interests own other properties in the same region, and during the war a smelter was constructed at San Luis Potosi by the International Mining & Metal Co. In western Sonora, near the Gulf of California, there are deposits of oxidized ores that furnished a considerable part of the ore imported into the United States. These are owned by American capital.