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Growing Plants Without Soil
"Successful experiments by Professor W. F. Gericke, at the University of California, and by Arthur C. Pillsbury."
On hydroponics and chemical-assisted hydroponic plant cultivation.
time-lapse cinematography of plant growth
Production Company Bell & Howell Filmo Rental Library
Audio/Visual sound, color
Copy on archive.org
Arthur C. Pillsbury Films 1930 on
