Excerpt from Production and Properties of Zinc: A Treatise on the Occurrence and Distribution of Zinc Ore, the Commercial and Technical Conditions Affecting the Production of the Spelter, Its Chemical and Physical Properties and Uses in the Arts
This book was undertaken originally as the introductory portion of a treatise on the metallurgy of zinc. Upon the completion of the latter, how ever, it appeared advisable for various reasons to limit it to a consideration of the purely technical questions involved in the extraction of zinc from 'its ores, or rather the concentrated products which are delivered by the miners for smelting. Although a knowledge of the physical and chemical 'iproperties of the metal, the occurrence of its ores, and the conditions which afiect the markets is of importance to the smelter, it is equally of impor tance to the miner and trader. It was thought therefore that a collection of the general commercial and technical data of the metal in a special treatise devoted solely to it would be useful to those who are engaged in the industry in the various ways, and with that in view the present book was prepared upon a considerable enlargement of the original plan.
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