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.
Genre: Documentary
Stars: Amílcar Tirado
Crew: Jack Delano (Cinematography), José R. Ramírez (Music), Jesús Figueroa (Assistant Camera), Jack Delano (Director), Edwin Rosskam (Screenplay)
Country: Puerto Rico
Language: Español
Studio: Comisión de Parques y Recreos Públicos de Puerto Rico
Runtime: 10 minutes
Quality: HD
Released: Apr 13, 1949
IMDb: 10
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