Babbitt, Edwin D. The Principles of Light and Color: Including Among Other Things the Harmonic Laws of the Universe, the Etherio-Atomic Philosophy of Force, Chromo ... Fine Forces, Together With Numerous Discove

The Principles of Light and Color: Including Among Other Things the Harmonic Laws of the Universe, the Etherio-Atomic Philosophy of Force, Chromo ... Fine Forces, Together With Numerous Discove