The chromite mines of Magnesia, Thessaly, and adjacent islands in eastern _Greece_ have furnished a more or less continuous output for the last 30 or 40 years. The ore mined, however, has been mainly of low grade, most of it averaging between 30 and 40 per cent. chromic oxide. It is said to be used largely for refractory purposes. Before 1908 most of the Grecian production of chromite came from the mines of Magnesia, but more recently the mines of southern Thessaly have furnished most of the ore. Mines in the Grecian Archipelago have also furnished some ore. The annual output of Greece has varied from a few hundred tons to more than 15,000 tons. During the past 20 years it has rarely fallen below 5,000 tons. Chromiferous iron ore in considerable quantity is mined in Greece, most of it being exported. In 1913 ten or more mines were worked. The production has averaged more than 100,000 tons annually. The mines are operated in part by Greek and in part by French and British firms. The chromic iron ores produced in the former _Austrian Empire_ have come mainly from the central part of Bosnia, but the chromite mines in Upper Styria and those on the Roumanian border have also furnished an appreciable output, the ore being low-grade. The deposits of Bosnia are in serpentine. The ore is of good quality and has been mined for use as a furnace lining. On and near the left bank of the Danube River in the Banat, Hungary, there is an extensive area of serpentine containing chromite in bunches. The deposits have been worked to a slight extent. =North America.=--In _Canada_ chromite-bearing areas of considerable extent are found in the southern part of the Province of Quebec, where nearly all the productive chromite mines of Canada are situated. The ore occurs in serpentine in irregular masses and pockets without definite form, that range in size up to 75 feet along the longer axis, rarely reaching 100 feet. The amount of high-grade ore in the Quebec chromite deposits is not large, but low-grade ore bodies which under normal market conditions can not be mined at a profit are numerous and of large size. The low-grade ores range in content of chromic oxide from less than 20 per cent. to 35 or 40 per cent. Nearly all the Canadian ore mined has been exported to the United States. From 1910 to 1914 the output of chrome ore from the Quebec mines was insignificant, owing to the cost of mining low-grade ores and the lack of a market for them. When the price of chromite rose late in 1914, American firms began active developments in the field, and subsequently two concentrators were built by the Mutual Chemical Co. The output of Canadian chromite, both of crude ore and concentrates, during the war period was noteworthy, the production rising from 121 long tons in 1914, to 47,035 long tons in 1916 and 43,725 long tons in 1917.