Release Date: 1949-04-13
Rating:0.0 / 10(0 votes)
Status: Released
Genres: Documentary
Runtime: 10 min
Director: Jack Delano
Writer: Edwin Rosskam
A drop of water is taken to a laboratory in San Juan, Puerto Rico to determine its purity. The film communicates scientific health information, such as the need to boil drinking water.
Trailer not available.
