Note 6 — Chapter I
Reading edition
Footnote 6: (return) See Carpenter's "Compar. Physiology," p. 625; Lyell's "Principles of Geology," pp. 588, 589.
Reading edition
Footnote 6: (return) See Carpenter's "Compar. Physiology," p. 625; Lyell's "Principles of Geology," pp. 588, 589.