The physiological processes of plant life and the chemical changes that produce autumnal colors are studied.
National Film Board of Canada, 1123 Broadway, Ste 307, New York, NY 10010, Phone: (212)629-8890, Toll-free: 800-542-2164, Fax: (866)299-9928, URL: http://www.nfb.ca
Available on VHS
Running time 24 minutes.
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