The Online Books Page

Books by American Railway Association. Signal Section:

Books in the extended shelves:

• American Railway Association. Signal Section: American railway signaling principles and practices. (New York, 1927), also by Association of American Railroads. Communication and Signal Section and Association of American Railroads. Engineering Division.s. Signal Section (page images at HathiTrust)
• American Railway Association. Signal Section: The invention of the track circuit. The history of Dr. William Robinson's invention of the track circuit, the fundamental unit which made possible our present automatic block signaling and interlocking systems. (Signal Section, American Railway Association, 1922), also by Herbert S. Balliet (page images at HathiTrust)
• American Railway Association. Signal Section: Manual of recommended practice (The Association, in the 20th century) (page images at HathiTrust)
• American Railway Association. Signal Section: Proceedings. (Bethlehem, Pa. [etc.], 1919) (page images at HathiTrust)
• American Railway Association. Signal Section: Proceedings. (Bethlehem, Pa., 1921) (page images at HathiTrust)

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