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

by Sir Charles Lyell

[206-A] Murchison, Quart. Journ. of Geol. Soc. vol. v., and Lyell, vol. vi. 1850. Anniversary Address.

[206-B] See paper by the author, Quart. Journ. Geol. Soc. vol. iv, p. 12.; and Second Visit to the U. S. vol. ii. p. 59.

[206-C] Quart. Journ. Geol Soc. vol. vi. p. 32.

[207-A] See Memoir by R. W. Gibbes, Journ. of Acad. Nat. Sci. Philad. vol. i. 1847.

[208-A] Lyell, Quart. Journ. Geol. Soc. 1847, vol. iv. p. 15.

[209-A] M. Alcide d'Orbigny, in his valuable work entitled Paléontologie Française, has adopted new terms for the French subdivisions of the Cretaceous Series, which, so far as they can be made to tally with English equivalents, seem explicable thus:

Danien.	Maestricht beds.
Senonien.	Upper and lower white chalk, and chalk marl.
Turonien.	Part of the chalk marl and the upper greensand, the latter being in his last work (Cours Elémentaire) termed Cénomanien.
Albien.	Gault.
Aptien.	Upper part of lower greensand.
Neocomien.	Lower part of same.

[211-A] See paper by the author, Trans. of Geol. Soc., vol. v. p. 246., 1840.

[211-B] Fitton, Geol. Trans., 2d series, vol. iv. p. 319.

[215-A] Proceedings of Geol. Soc., vol. iii. pp. 7, 8., 1842.