[168a] Page 3.
[168b] Page 4.
[169a] It should be remembered this was the year in which the “Vestiges of Creation” appeared.
[173a] “Charles Darwin,” p. 67.
[173b] H. S. King & Co., 1876.
[174a] Page 17.
[195a] “Phil. Zool.,” tom. i., pp. 34, 35.
[202a] “Origin of Species,” p. 381, ed. i.
[203a] Page 454, ed. i.
[205a] “Principles of Geology,” vol. ii., chap. xxxiv., ed. 1872.