[With data on railroad and track mileage with block signals and safety equipment installed, by rail line]
Reproduction Note:
Microfiche. [Bethesda, Md.]: Congressional Information Service, 1992. 11 x 15 cm. (CIS US Executive Branch Documents, 1789-1909 : no. IC136-2.1 to IC136-2.2)
Reviewed/Cited In:
CIS Index to U.S. Executive Branch Documents, 1789-1909 Part III