Excerpt from Lead-Smelting: The Construction, Equipment, and Operation of Lead Blast-Furnaces, and Observations on the Influence of Metallic Elements on Slags and the Scientific Handling of Smoke

The literature of smelting lead, gold, and silver ores with blast-furnaces is limited in volume. It has mainly emanated from students of Chemistry and Metallurgy who have not enjoyed the advantage of personal contact with the practical problems confronting the lead-smelter. I recall no publication of this character that is not recognized as a distinct aid to research in the almost boundless realm of the twin sciences. But their dependable usefulness is limited to the didactic. The chasm separating theoretical from practical results is sufficiently wide and deep to engulf unmeasured capital and vaultless ambition. The theory of Smelting is a prerequisite to successful practice, but its mastery does not complete the equipment.

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