The assayer's guide or, Practical directions to assayers, miners and smelters, for the tests and assays. This book, "The assayer's guide Or, Practical directions to assayers, miners and smelters, for the tests and assays", by Oscar Montgomery Lieber, is a replication of a book originally published before 1907. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible.
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