Synopsis
On The Influence Of The Blue Color Of The Sky In Developing Animal And Vegetable Life by A. J. Pleasonton. This memoir, presented as a report read before the Philadelphia Society for Promoting Agriculture in May 1871, recounts a series of experiments conducted between 1861 and 1871 to explore how the blue color of the sky and transmitted blue/violet light can influence the development of vegetable and animal life. The author describes building a violet-glass grapery to transmit blue light to grapevines, detailing rapid growth and exceptionally heavy crops—up to about 1,200 pounds of grapes in 1862, and successive large yields in following years. He also reports animal experiments, including pigs and an Alderney calf, showing enhanced growth and vigor under violet light. The narrative weaves practical farming trials with discussions of electricity, heat, and atmospheric phenomena, arguing that blue and violet rays stimulate biological processes via electro-chemical mechanisms, and that the sky’s blue color deoxygenates carbonic acid gas to support vegetation and life. The work blends experimental observation with broader speculation about the forces of nature and agricultural potential.
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On the Influence of the Blue Color of the Sky in Developing Animal and Vegetable Life
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On the Influence of the Blue Color of the Sky in Developing Animal and Vegetable Life
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HardPress Ltd, 2020
ISBN 10: 0371387450
ISBN 13: 9780371387450
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On the Influence of the Blue Color of the Sky in Developing
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