Elements of metallurgy, by W.J. and W.J. Harrison
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acid action added allowed alloy amalgam amount antimony arsenic becomes bismuth blast bottom calcined carbon carbonic oxide cast cent chambers charcoal charge chemical chloride cloth coal coke colour combines complete compound consists contains converted cool copper covered crucible crystallizes Cuprous effected Elementary elements employed extracted feet fuel furnace gases gold hearth heated illustrated impurities inches iron known lead lined liquid mass means melting mercury metal method mixed molten nature obtained occurs operation oxide oxygen pass pig-iron placed plates powder practical present produce puddling pure quantity raised reduced regulus removed retorts reverberatory rich roasting rolls salt separate side silicate silver silver chloride slag smelting solution specific gravity steel sulphate sulphide sulphur sulphur dioxide surface takes temperature termed text-book treated twyer usually varies weight wood zinc
Page 243 - GENERAL INSTRUCTIONS. If the rules are not attended to, the paper will be cancelled. You may take the Elementary or the Advanced or the Honours paper, but you must confine yourself to one of them.