The Principles of Light and Color human head - from our story 'Highlights of Colour Theory: Illustrating The Mysteries of Light In Colour Wheels, Tables, Charts And Maps'

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) -

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