More Letters of Charles Darwin — Volume 1 A Record of His Work in a Series of Hitherto Unpublished LettersCHAPTER 2.VIII.--Man, 1860-1882. 2.VIII.I. Descent of Man, 1860-1882.Chapter 311 wordsPublic domain2.VIII.II. Sexual Selection, 1866-1872. 2.VIII.III. Expression, 1868-1874.