Ed.
[14] From the _Presbyterian_, December 7, 1872.
[15] Origin of Species, 4, 10, 127, 9, 97, 100, 409, 410, 415, 423.
Descent of Man, 192, 204, and II .-- 15, 257.
[16] Natural Selection, p.365.Am.

Ed.
[17] Theory of the Earth, 123.
[18] Testimony of the Rocks, 77.
[19] Address at Annual Meeting of the Geological Society, 1862.
[20] Agassiz's Methods of Study.
[21] Draper's Human Physiology, 506.
[22] Lyell's Principles of Geology, Book III., Chapter 33..