From a Depression-era documentary that describes the importance of the Mississippi River. Written and directed by Pare Lorentz The complete film can be found at: http://www.archive.org/details/RiverThe1937
This clip was taken from "Prelude To War, directed by Frank Capra. Download the entire film at: http://www.archive.org/details/PreludeToWar
The complete film of "Wheels Of Progress" can be found at: http://www.archive.org/details/Wheelsof1927
Excerpt From "Dating: Dos And Don'ts": http://www.archive.org/details/DatingDo1949
The entire film can be downloaded at: http://www.archive.org/details/hindenberg_explodes
Testing the result of massive underground explosions by the U.S. Atomic Energy Commission during Operation Dugout in 1960.