Sound & colour : their relations, analogies & harmonies (1869)
Macdonald, John Denis, 1826-1908, Royal College of Surgeons of England · London : Longmans, Green, Reader, and Dyer · leaf 38
28 SOUND AND COLOUR. DIAGRAM XIV. Green. … Bed. The alternate colours compose two common chords, one on the first and the other on the second interval of the scale. The opposite colom-s are also concords, stand- ing in the double relation of fourths and fifths to each other, one being primitive and the other compound. Now in all the…
Music · Color · Hearing · Paintings
Internet Archive · Royal College of Surgeons of England · Public domain (published before 1931). Free to use for anything.