Note 125 — Chapter V
Reading edition
In the earlier editions of this work, a fourth book was added on Geology Proper, or Systematic Geology, containing an account of the former changes of the animate and inanimate creation, brought to light by an examination of the crust of the earth. This I afterwards (in 1838) expanded into a separate publication called the Elements of Manual Geology, of which a fourth edition appeared December, 1851.