description About
How science and nature combine to purify water in a reservoir. Micro-cinematography shows the bacteria present in the water.
Info
- verified Status: Released
- calendar_month Release Date: 1927-01-01
- video_camera_front Companies British Instructional Films Ltd.
- timer Runtime: 6 Mins
- star Rating: 0 / 10
- favorite Likes: 0 Likes
- info IMDB ID
- visibilityViews: 2 views
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