Principles of Geology / or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology

by Sir Charles Lyell

[304] Consult J. Prestwich, Water-bearing Strata around London. 1851. (Van Voorst)

[305] Sabine, Journ. of Sci. No. xxxiii. p. 72. 1824.

[306] Héricart de Thury, "Puits Forés," p. 49.

[307] Prestwich, p. 69.

[308] Bull. de la Soc. Géol. de France, tom. iii. p. 194.

[309] Boué Résumé des Prog. de la Géol. en 1832, p. 184.

[310] Seventh Rep. Brit. Ass. 1837, p. 66.

[311] H. de Thury, p. 295.

[312] Bull. de la Soc. Géol de France, tom. i. p. 93.

[313] Bull. de la Soc. Géol. de France, tom. ii. p. 248.