Ore Dressing, Vol. 1 of 2 (Classic Reprint)

The present edition is printed on a specially made, heavy, supercalendered paper, as being better suited to the reproduction of the half-tone illustrations. The changes in the book consist chiefly in additions and corrections. A new cut of the Richards vortex classifier has been added, and the Kinkead Mill has new cuts and a revised description. The description of theB oss system has also undergone revision. The complete revision of a book in which the parts are so intermeshed and correlated is a work of great difficulty; for not only must new mills be inserted in their proper place, but their introduction requires the rewriting of all the chapters on machines and the resetting of the tables of data. The principles remain the same; only the details are changed. Therefore the author believes the most satisfactory way to keep such a book up to date is by the addition of appendices every few years, bringing the machines, the mills and the theory into harmony with the advance of knowledge. For the first appendix the author has been collecting data the past two years, and hopes to have it ready in the near future. These appendices will be issued as separate pamphlets, and can be purchased bv those who have the earlier editions. R. H. R. Oct. 4, 1905.
(Typographical errors above are due to OCR software and don't occur in the book.)

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