The series is thus (Nicholson, p. 702):—1. Eohippus—Lower Eocene of America; fore-feet have four toes and a rudimentary thumb or pollex. 2. Orohippus (about the size of a fox)—Eocene. 3. Anchitherium—Eocene and Lower Miocene; three toes, but 2 and 4 are diminutive. 4. Hipparion—Upper Miocene and Pliocene; still three toes, but 3 more like the modern horse and 2 and 4 still further diminished. 5. Pliohippus—later Pliocene, very like Equus. 6. Equus—Post-Pliocene.
CHAPTER VII.
THE DESCENT OF MAN.
We now approach a special objection which always, has been (and I shall be pardoned, perhaps, for saying always will be) the crux of the theory of unaided, uncreated evolution—the advent of reasoning, and not only reasoning, but self-conscious and God-conscious MAN.
Here again the lines of argument are so numerous, and the details into which we might go so varied, that a rigid and perhaps bald selection of a few topics is all that can be attempted.