Railroads. Freight and passenger service operating statistics of class 1 steam roads in United States, compiled from 165 reports of freight statistics representing 181 roads and from 162 reports of passenger statistics representing 178 roads (switching and terminal companies not included), May, 1922 and 1921 [and 5 months ended with May, 1922 and 1921; prepared in] Bureau of Statistics. May.

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