The principles of light and color: including among other things the harmonic laws of the universe, the etherio-atomic philosophy of force, chromo chemistry, chromo therapeutics, and the general philosophy of the fine forces, together with numerous discoveries and practical applications ..

Babbitt, Edwin D. (Edwin Dwight), 1828-1905 · 1878 · New York, Babbitt & Co. · 18 pictures

Light · Color · Color -- Therapeutic use · Phototherapy

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