The SciencesMarch 1, 1931
The Mecca of Ancient America
Stories by A. Hyatt Verrill
EnvironmentAugust 1, 1930
Built of Mud
The SciencesJuly 1, 1930
America's First International Highway
Pre-Incan Aborigines Engineered a "Modern" Highway 4000 Miles Through the South American Andes
EvolutionJuly 1, 1928
Who are the Mysterious Bearded Indians?--II
Many Scientists Believe that the Cultures of Central and South America Were Brought from the Old World by Oceanic Invaders Who Crossed the South Pacific in Canoes--The "Diffusionist" Theory
EvolutionJune 1, 1928
Who are the Mysterious Bearded Indians?
A Strange Tribe, With Strange Customs and Strange Physical Characteristics, Is Being Investigated in South America. Are They Truly Indians or Are They Descendants of Some Other People?