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Chapter Vi. _life in the Past._

The Meaning of Evolution · Samuel Christian Schmucker — chapter 18 of 34 · ~28 words · public domain

1. The Story of Our Continent, Shaler.

2. Elements of Geology, Blackwelder and Barrows.

3. The Story of Evolution, McCabe.

4. Encyclopedia Britannica, article, Geology (palæontological and physiographical).

The Meaning of Evolution · The Wunder Library — complete classics, free to read, with narration.