This book, "The metallurgists and chemists' handbook a reference book of tables and data for the student and metallurgist. 7", by Donald M. Liddell, is a replication of a book originally published before 1930. 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.