Présentation de l'éditeur
This book is designed for use as a text. It is, therefore, properly and of necessity a compilation. The subject matter and method of presentation have been developed from my lectures on the metallurgy of gold and silver, and will, I trust, meet with the approval of other students of the metallurgic art. While every effort has been made to avoid errors, it is scarcely to be hoped that none will be found, and I shall appreciate having my attention called to such as are discovered. I have levied freely upon all available sources of information. Especially am I beholden to the files of theM ining {and Scientific) Press, theE ngineering and Mining Journal, theM ining andE ngineering World, theM ining Magazine (of London), the Transactions of the American Institute of Mining Engineers and of the Institution of Mining and Metallurgy. I have also made use of all available texts, and lastly have drawn in many cases from my own ten years of professional practice. In every case I have tried to acknowledge the source from which information has been taken, but doubtless I have failed to do so in certain instances; for even as we are part of all whom we have met, so our knowledge is part of all that we have read, and after many years of reading full acknowledgment is no longer a possibility. For aid in illustrating this book my thanks are due to the following manufacturers: A llis-C halmers Co., Milwaukee; Blaisdell Co., Los A ngeles; Braun-K necht-H eimann Co., San Francisco; Chalmers and Williams, Chicago; Chrome Steel Works, Brooklyn; Colorado I ron Works, Denver Engineering Works, and Dorr Cyanide Machinery Co., Denver; Fairbanks-M orse and Co., Chicago; Hammond Mfg. Co., Portland, Ore.; Hardinge Conical Mill Co., New York; Joshua Hendy I ron Works, San Francisco; Mine andS melterS upply Co., Denver; Monarch Engineering Co., Baltimore; Moore Filter Co., New York; Oliv
(Typographical errors above are due to OCR software and don't occur in the book.)
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