Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: Bismuth, a lustrous, reddish-white metal, used in preparation of pharmaceutical products and cosmetics, is being taken out in small quantities of 60-70 per cent. ore in Rhodesia. Corundum ia an abrasive of very good quality found in decomposed pegmatites. The price in Europe averages $100 or more per ton. The principal countries producing corundum are Canada, United States, Naxos, Transvaal, Madagascar. Since the war the production in the two last named has been considerable, the value in 1916 from the Transvaal being £7,762, though previous amounts had been trifling. In Madagascar 1,532 tons were exported in 1916, as compared with 334 tons in 1915. Corundum has been discovered in payable quantities on a farm in the Zoutpansberg district of the Union of South Africa. After-the-war conditions will not likely be favorable to development of African corundum. Titanium, a dark gray metal, is found in numerous beds in Madagascar, where the ore sometimes attains 50 per cent. The mines of Betairy contain amounts visible on the surface, exceeding 100,000 tons. In Tripoli is found infusorial earth, valuable in making explosives. It is known in commerce- under the name "Tripoli". Bitumen is being worked near Stanleyville in Belgian Congo. Mercury is found in Algeria and Tunis. ANTIMONY Antimony, a silver-white, crystalline metal used in chemistry and medicine, is found in Morocco, in the Transvaal, and at Djebel Taya, in Algeria. Asia is the chief source of antimony, supplying 50 per cent. of the world's output. France is second with nearly 25 per cent., followed by Mexico and Austria-Hungary. Algeria produces 1 per cent. but is capable of much development. There is a small output in Morocco and also in the Transvaal. The Algerian ores are nearly all oxidized, and...