A Manual of Elementary Geology / or, The Ancient Changes of the Earth and its Inhabitants as Illustrated by Geological Monuments

by Sir Charles Lyell

[360-A] Since this was written, Mr. Logan has discovered chelonian footprints in the lowest fossiliferous beds of the Silurian series, near Montreal, in Canada. Professor Owen inclines to refer them to the genus Emys.—Quart. Journ. G. S., vol. vii. p. lxxvi.

[368-A] For a description and theory of active volcanos, see Principles of Geology, chaps. xxiv. to xxvii.

[374-A] G. Rose, Ann. des Mines, tom. viii. p. 32.

[374-B] Geol. Trans. vol. ii. p. 211. 2d series.

[378-A] I have been favoured with this drawing by Captain B. Hall.

[381-A] Cambridge Transactions, vol. i. p. 402.

[382-A] Cambridge Trans., vol. i. p. 410.

[382-B] Ibid. vol. ii. p. 175.

[382-C] Dr. Berger, Geol. Trans., 1st series, vol. iii. p. 172.

[382-D] Geol. Trans., 1st series, vol. iii. p. 210. and plate 10.