Railway-signalling. Automatic an introductory treatment of the purposes, equipment, and methods of automatic signalling and track-circuits for steam and electric railways, for railwaymen, students, and others This book, "Railway-signalling", by Francis Raynar Wilson, is a replication of a book originally published before 1922. 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.