
TechnologyFebruary 1, 1923
Railroad Building in the Andes
Two New Transcontinental Lines to Pierce the Rockies of South America

Railroad Building in the Andes
Two New Transcontinental Lines to Pierce the Rockies of South America

A Builder's Paradise
Ground that Cuts Like Cheese and Needs No Shoring or Piling

An Antediluvian Monster
Is the Argentine Plesiosaurus a Fake or a Scientific Marvel?

Hydroelectric Power in Argentina
Will the Iguazu Falls Provide the Solution of a Grave Fuel Problem?