On the sensations of tone as a physiological basis for the theory of music
Hermann von Helmholtz (Author), Alexander John Ellis
Print Book, English, 1954
Second English edition, translated thoroughly revised and corrected, rendered conformal to the 4th (and last) German ed. of 1877, with numerous additional notes and a new additional appendix bringing down information to 1885, and especially adapted to the use of music students by Alexander J. Ellis
Dover Publications, New York, 1954