This section introduces the second, unaltered edition of "Elemente der Psychophysik" by Gustav Theodor Fechner. The book includes references to the author's later works and a chronologically ordered list of his writings. This is the first part of the book, published in Leipzig by Breitkopf & Härtel in 1889.This section introduces the second, unaltered edition of "Elemente der Psychophysik" by Gustav Theodor Fechner. The book includes references to the author's later works and a chronologically ordered list of his writings. This is the first part of the book, published in Leipzig by Breitkopf & Härtel in 1889.