Footnotes

[622:1] See Daniel Webster, page [532].

[622:2] See J. Q. Adams, page [458].

I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection.

The Origin of Species. Chap. iii.

We will now discuss in a little more detail the Struggle for Existence.[622:3]

The Origin of Species. Chap. iii.

The expression often used by Mr. Herbert Spencer of the Survival of the Fittest is more accurate, and is sometimes equally convenient.[622:4]

The Origin of Species. Chap. iii.