Railroads. Freight and passenger service operating statistics of class 1 steam railways in United States, compiled from 154 reports of freight service statistics representing 165 railways and from 148 reports of passenger service statistics representing 159 railways (sw.tching and terminal companies not included), July, 1929 and 1928 [and 7 months ended with July, 1929 and 1928; prepared in] Bureau of Statistics.

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