6 Pages in Charles Darwin's Library associated with "number, quantity: 'amount of life'"

  1. Elements of physiology.
    By: Müller, Johannes. - Baly, W.
    Publication info: London :Taylor & Walton,1838-1842.
    Volume: v.1
    Pages: Page 39  
  2. On the variation of species.
    By: Wollaston, Thomas Vernon.
    Publication info: London :John Van Voorst,1856.
    Pages: Page 54  Page 55  Page 115  
  3. über den Einfluss der Isolirung auf die Artbildung.
    By: Weismann, August.
    Publication info: Leipzig :W. Engelmann,1872.
    Pages: Page 106  End Slip , side 2