On harmonical parallel between tone and colour
—On the term of "rest," fifths, and the sympathy of music with life
—Relativities of sounds and vibrations of strings
—The doctrines of three pairs, six tones, and the law of "two and fro"
—The germ of the system probably to be found in the adaptability of numbers
—Sudden death of Dr. Gauntlett, . . . . . 48 [Harmonies of Tones and Colours, Table of Contents4 - Harmonies]