Railway engineering and maintenance cyclopedia : an authoritative manual of engineering, maintenance and signaling including definitions, descriptions, illustrations and methods of use of the materials, equipment and devices employed in the construction and maintenance of tracks, bridges, buildings, water service, signals and other fixed railway properties and facilities. / Editor, Elmer T. Howson. Managing editor, C. Miles Burpee, assisted by Philip George Lang jr., Arthur L. Sparks, C.R. Knowles, P.M. Gault. Compiled and edited in co-operation with the American railway engineering association and the Signal section, Association of American railroads.