Titles read: "Flaming Death! America, too, has its mining disasters - and here's an experimental explosion made during research work on the dreaded coal dust."
Pittsburgh, Pennsylvania, United States of America.
Various shots of coal dust being exploded in a mine shaft in an experiment...
Two yachts racing at sea.
A glimpse inside the illuminated caves of Oregon.
3,000,000 volts of electricity spark off a huge rod.
President-elect Herbert Hoover visits South America.
A look at U.S. polo players practising for the Cup.
Terrible fire in the wooden city of Colon in Panama.
Scenes of flooded towns in South America.
Ecuador forges final rail link between its capital Quito and the Pacific.