This book, "Practical structural design a text and reference work for engineers, architects, builders, draftsmen and technical schools especially adapted to the needs of self-tutored men. 2", by Ernest McCullough, is a replication of a book originally published before 1921. 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.