Scientific Horticulture

Scientific Horticulture

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Silent. 12 min. Cat. No. F 551.) This film shows the life cycle of the Tortoiseshell butterfly from the laying of eggs to the ... (Tint-micrography and diagrams illustrate how these elements are absorbed, chiefly through roots and leaves, and theanbsp;...

Title:Scientific Horticulture
Publisher: - 1939


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