...Glazed pipes andearthenware used in smelting iron, show that iron was smelted in theremotest ages in Africa...
David Livingstone 「The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume II (of 2), 1869-1873」
...The land was subject to the Songhay, but the cities became industriouscenters of smelting, weaving, and dyeing...
W.E.B. Du Bois 「The Negro」
...Heaps ofiron-slag and furnaces for smelting iron were discovered, and there weremagnificent quays and landing places on the river side, for the export ofiron...
Various 「The Journal of Negro History, Vol. I. Jan. 1916」
...A large fume of what bore many marks of arsenic arose from the crucible during the time of smelting it...
David Collins 「An Account of the English Colony in New South Wales, Vol. 2」
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