Report of the Interstate commerce commission on block-signal systems and appliances for the automatic control of railway trains.
By: Under Public joint resolution no. 46, approved June 30, 1906.
Contributors: Knapp, Martin Augustine, 1843-1923.
Series: 59th Cong., 2d sess. Senate. Doc. 342
Publisher: Gov't print. off.
Published: 1907
Place of publication: Washington
Language: eng
Number of pages: 77
Subjects: Railroads -- Signaling -- Block system.
Notes: Martin A. Knapp, chairman.