Although the aircraft and the private auto were making headway, railroads in the late 1920s were at peak quality and luxury in their passenger service. Both sleeping cars and dining cars had been in operation since the 1870s, and though they had been much admired, they had never been so widely used as they we're during the 1920s. Most railroads in the United States contracted with the Pullman Company to supply equipment and operate the cars. Railroads had for years operated their passenger service jointly so that travelers could pass from one system to another without interruption, and the Pullman Company followed this pattern. For example, the Crescent Limited, operating from New York to New Orleans; utilized the Pennsylvania Railroad from New York to Washington. and the Southern Railroad for the remainder of the trip; passengers had no need to...