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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 .. (1878)

Babbitt, Edwin D. (Edwin Dwight), 1828-1905 · New York, Babbitt & Co. · leaf 7

An illustration from 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 .., 1878, leaf 7
VARIOUS SHADES OF GRAY ARRANGED IN ANALOGICAL HARMONY.

Phototherapy · Color

Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.

More pictures from 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 ..

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