The SciencesAmerica's First International HighwayPre-Incan Aborigines Engineered a "Modern" Highway 4000 Miles Through the South American AndesBy A. Hyatt Verrill on July 1, 1930AdvertisementABOUT THE AUTHOR(S)Recent Articles by A. Hyatt VerrillThe Mecca of Ancient AmericaBuilt of MudWho are the Mysterious Bearded Indians?--II