원문 (영어)

PREFACE If the great American novel is ever written, I hazard the guess that its plot will be woven around the theme of American transportation, for that has been the vital factor in the national development of the United States. Every problem in the building of the Republic has been, in the last analysis, a problem in transportation. The author of such a novel will find a rich fund of material in the perpetual rivalries of pack-horseman and wag