The field practice of laying out circular curves for railroads This book, "The field practice of laying out circular curves for railroads", by John C. Trautwine, is a replication of a book originally published before 1887. 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.