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Article
December 9, 1933

Life-Giving Light.

JAMA. 1933;101(24):1907. doi:10.1001/jama.1933.02740490067042

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Abstract

In this volume the relationship of light to life is considered in a coordinated series of essays written in a delightfully conversational style. Not only the biologic and physiologic reaction to light of animal tissues and plant substance are dealt with, but also the physics of light, nonmathematically. Things scientific are explained in terms that should be understandable to an interested and inquiring layman. Being one of A Century of Progress Series, it is probably not intended as a textbook; but it might well be recommended as parallel reading for the beginning student of biophysics. The contents deal with the history of artificial illumination, elements of the light spectrum, measurements of light energy, lens, storing of light energy in plant and animal life, meaning of vitamins and, finally, a short, fanciful discussion on the mysteries of life.

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