http://www.archive.org/details/Japanese1943
The complete film can be found at: http://www.archive.org/details/volcanoes
This clip was extracted from "The Brink Of Disaster" http://www.archive.org/details/BrinkofD1972
Excerpt From "Tornado" : http://www.archive.org/details/tornado
From a Depression-era documentary that describes the importance of the Mississippi River. Written and direted by Pare Lorentz The complete film can be found at: http://www.archive.org/details/RiverThe1937