[2] Mr. Wallace, in the "Anthropological Journal," 1864; see also Lubbock's "Prehistoric Times," last chapter.
[3] Moleschott, "Circulation of Life:" Letter XVIII., with Liebig's opinion there quoted.
[4] Kant, "Metaphysics of Ethics."
[5] See, for example, Renouvier, "Science de la Morale," 1869.
[6] "Limits of Philosophical Enquiry." 1868.
[7] Nehem. ix. 6.
[8] See Duke of Argyll's "Reign of Law."
[9] Job xxvi. 14.
[10] Plutarch, "De Justitia."
[11] Buchner.