A letter to P.S. Hamilton, Esq., Chief commissioner of mines This book, "A letter to P.S. Hamilton, Esq., Chief commissioner of mines", by John Rutherford, is a replication of a book originally published before 1867. 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. This book was created using print-on-demand technology. Thank you for supporting classic literature.