Title reads: "Aero engines by numbers".
United States of America (USA).
Aeroplanes being made in America, before being shipped over Atlantic in pieces to be reassembled and used by RAF.
Various shots of aeroplane engines being made in an American factory. Various shots of...
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.