Abstract |
Contents: Occurrence and utilisation of tungsten ores, part 1 Occurrence and utilisation of tungsten ores, part 2 Carnotite from South Australia Iron ores of the Crown Colonies and Protectorates of the British Empire. Vanadium. its occurrence, preparation and uses. Laterites from the Central Provinces of India. Economic products from Fiji (copper ore, marl). Recent discoveries of graphite in British African colonies (East Africa. Nyasaland. Rhodesia. Natal. Northern Nigeria) Chromite ore from the Transvaal. |