| Director | Karl Kurt Bosse |
| Producer | Knowledge Builders |
| Contributors | |
| Length | 11 min |
| B&W/Color | b&w |
| UO Library Catalog description: | Explains the ear structure and its mechanism, showing how sound waves are received by the inner ear, where they are converted into nerve impulses. Includes photography and animated drawings. |
| Call # | FILM Ma1 |
| Genre | instructional |
| Rare | yes |
| Online | yes; Internet Archive |
| Copyright status | public domain |
| Physical condition | good |
| Oregon-related | no |
Notes:
A popular Prelinger Archive entry; the film has some technically unastounding but atmospherically ambitious animation, including a startling shot in which a skull pulsates through an illustrated face as part of a transition. Bosse’s other films include How the Eye Functions.
16mm Lost & Found 
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