Official paved road and commercial survey of the United States. Sectional road maps covering the entire United States and lower Canada--Complete series of state maps in colors for commercial reference--A double page United States map showing main transcontinental highways--Logs, transcontinental Federal highways--Map and information concerning air mail and air express--Maps of principal cities in the United States showing main highways--Ready reference index locating cities, towns and villages with population according to latest Federal census--Descriptive gazetteer of United States and territorial possessions