Transactions of the American Institute of Mining, Metallurgical and Petroleum Engineers, Volume 34American Institute of Mining, Metallurgical, and Petroleum Engineers, American Institute of Mining Engineers The Institute, 1904 - Metallurgy Some vols., 1920-1949, contain collections of papers according to subject. |
Contents
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Common terms and phrases
acid Altai amount Assay associated average beds Bisbee blast-furnace carbon Cartersville cent chalcopyrite charge chert clay coal cofferdam coke Colo concentration containing cooling copper cost crucible crushed cupels cuprous oxide deposits diameter diorite district Douglas Island drill electric engine feet fissures formation furnace garnet geological gold grammes granite hearth heat hoist hornblende India Institute iron iron-ore labor less limestone litharge manganese masses matte metal method miles mill mineral mines motors N. Y. New York Nacozari nickel obtained occur ocher operation ore-bodies ore-deposits oxide Paleozoic pearlite pentlandite plant precipitation present pumps pyrite pyrrhotite quantity quartz quartzite Ready Bullion residual river rock samples schists shaft shales Siberia siliceous silver slag slimes smelting solution steam steel Sudbury sulphides sulphur surface Table tanks temperature thick tion tons Total Treadwell tuyeres Vanner York City zinc
Popular passages
Page 1 - New York City, NY New York City, NY New York City, NY New York City, NY Oxford, England.
Page xliii - At the time of his death, he was at the head of the firm of Barker & Harris, importers and commission merchants, of Boston.
Page xxiii - The duties of all officers shall be such as usually pertain to their offices, or may be delegated to them by the Council or tho Institute ; and the Council may in its discretion require bonds to be given by the Treasurer.
Page lxviii - A consideration of igneous rocks and their segregation or differentiation as related to the occurrence of ores."] Am.
Page xxiii - Vice-Presidents for two years, and the Managers for three years ; and no Vice-President or Manager shall be eligible for immediate re-election to the same office at the expiration of the term for which he was elected.
Page xxiv - ELECTIONS. The annual election shall be conducted as follows: Nominations may be sent in writing to the Secretary, accompanied with the names of the proposers, at any time not less than thirty days before the annual meeting ; and the Secretary shall, not...
Page xxv - This constitution may be amended at any annual meeting by a two-thirds...
Page 257 - Usually, the only treatment of the ore necessary before shipping is to free it from the adhering clay. Crushing and jigging are necessary in the spongy or porous type of ore, the numerous cavities of which are filled with the clay ; also in those ores containing considerable free-quartz grains and cemented fragments of the rock.
Page xxiii - All vacancies shall be filled by the appointment of the Council, and any person so appointed shall hold office for the...
Page 661 - The more compact portions, which are only slightly stained with iron, are seen to be composed of a transparent groundmass, threaded with minute cavities, which penetrate the rock in all directions and contain a fine dendritic growth of iron oxide. The latter occurs only rarely in isolated grains, but generally in clusters of minute grains or fibers, attached to each -other and branching irregularly from a central stem. They have no trace of crystal form. Passing toward the...