Douglas Harlon Movies
- 1939
The Story of Our Flag
The Story of Our Flag01939HD
The history of America's familiar Stars and Stripes flag is chronicled, alongside the historical events that shaped America from its colonial roots th...
- 1941
How the Eye Functions
How the Eye Functions01941HD
The science of vision is explained with animated diagrams of the human eye
- 1940
How the Ear Functions
How the Ear Functions01940HD
The science of hearing is explained with animated diagrams of the human auditory system.