[65] Discussed at greater length in vol. II.
[66] Woodward, H. B. (95), Figs. 124 and 133 from photographs by Mr Strahan.
[67] Buckland (37) Pl. LVII.
[68] Young, Glen, and Kidston (88).
[69] Gardner (87), p. 279.
[70] Treub (88).
[71] Morton (91), p. 228.
[72] Lyell (45), vol. I. p. 180.
[73] Mantell (44), vol. I. p. 168.
[74] Forbes, H. O. (85), p. 254.