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. Illustrated by more than two hundred engravings and four colored plates (1896)
Babbitt, Edwin D. (Edwin Dwight), 1828-1905 · East Orange, N. J., Pub. by the author at the College of Fine Forces · leaf 435
412 CHROMO-PHILOSOPHY. … Fist i 51,000 to produce blue, or 60,000 to produce dark violet. Inmusic, the pitch of high or low tones depends upon short orlong waves, and these depend upon a small or large tube in suchinstruments as flutes, whistles, etc., or upon small or large chordsor other vibratory arrangements by which…
Color
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