Photo, Print, Drawing Plants thrive indefinitely sealed in airtight bulbs. Miss Louise Thorne, of the National Academy of Sciences in Washington, holding a small living plant hermetically sealed in an old electric light bulb. Although the plant has been shut up in this glass prison for several months, receiving nothing from outside but sunlight and warmth, it is thriving and growing, using the same supply of water and air over and over again. This system of growing plants is the invention of Raymond H. Wallace, a student of botany at Columbia University digital file from original negative

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