Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. When I first engaged in stamp-milling and amalgamation, like many others I eagerly and unsuccessfully sought for a treatise that would tell me what to do and why - that would give the ideas and principles by which millmen were to be guided, and the methods found to be most satisfactory. Later the subject of examining ores and the adjusting of the stamp-mill to their requirements became of interest. The first edition of this book incorporated my experience and conclusions along the above lines, and the knowledge gathered from other millmen and metallurgists with whom I had associated. Since then I have been engaged in many widely separated parts of the metal-mining regions of the United States, and have had further opportunity to observe stamp-mill practice and to discuss the subject with millmen and metallurgists. During this time I have also prepared a work on standard cyanide practice. As a result the third edition of this book is an entire revision and enlargement that has been illustrated with 77 carefully selected cuts and drawings.

When I first engaged in stamp-milling and amalgamation, like many others I eagerly and unsuccessfully sought for a treatise that would tell me what to do and why — that would give the ideas and principles by which millmen were to be guided, and the methods found to be most satisfactory. Later the subject of examining ores and the adjusting of the stamp-mill to their requirements became of interest. The first edition of this book incorporated my experience and conclusions along the above lines, and the knowledge gathered from other millmen and metallurgists with whom I had associated. Since then I have been engaged in many widely separated parts of the metal-mining regions of the United States, and have had further opportunity to observe stamp-mill practice and to discuss the subject with millmen and metallurgists. During this time I have also prepared a work on standard cyanide practice. As a result the third edition of this book is an entire revision and enlargement that has been illustrated with 77 carefully selected cuts and drawings.