Rogers machinists guide a practical illustrated treatise on modern machine shop practice This book, "Rogers machinists guide a practical illustrated treatise on modern machine shop practice", by N. Hawkins, is a replication of a book originally published before 1913. 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.