Note 737 — Chapter XIX
Reading edition
Owen, Geol. Trans. 2d ser. vol. vi. p. 69, &c., plates vii. viii. ix.; Harlan’s Medical and Physical Researches, p. 337, &c.; Gibbes, Journ. Acad. Nat. Sc. Philadelphia, 2d ser. 1847, vol. i. pp. 5 and 16; Bulkley, Silliman's Journal, vol. xliv. p. 409; Carus, Nova Acta Cur. Nat. vol. xxii. pt. ii. 1848.