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 Automatic", 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.
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