4 Pages in Charles Darwin's Library associated with "mental states - pleasure"

  1. De la physionomie et des mouvements d'expression.
    By: Gratiolet, Pierre.
    Publication info: Paris :J. Hetzel,1865.
    Pages: Page 335  
  2. Elements of physiology.
    By: Müller, Johannes. - Baly, W.
    Publication info: London :Taylor & Walton,1838-1842.
    Volume: v.2
    Pages: Page 1407  Page 1701  
  3. On the genesis of species.
    By: Mivart, St George Jackson.
    Publication info: London :Macmillan & Co.,1871.
    Pages: Page 196