[48-A] Edin. Trans. vol. vii. pl. 3.
[50-A] Proceedings of Geol. Soc. vol. iii. p. 148.
[53-A] See plan by M. Chevalier, Burat's D'Aubuisson, tom. ii. p. 334.
[55-A] See M. Thurmann's work, "Essai sur les Soulèvemens Jurassiques du Porrentruy, Paris, 1832," with whom I examined part of these mountains in 1835.
[57-A] I am indebted to the kindness of T. Sopwith, Esq., for three models which I have copied in the above diagrams; but the beginner may find it by no means easy to understand such copies, although, if he were to examine and handle the originals, turning them about in different ways, he would at once comprehend their meaning as well as the import of others far more complicated, which the same engineer has constructed to illustrate faults.
[60-A] Biographical account of Dr. Hutton.
[60-B] See above, p. 49. and section.
[60-C] Playfair, ibid.; see his Works, Edin. 1822, vol. iv. p. 81.
[62-A] Playfair, Illust. of Hutt. Theory, § 42.
[62-B] Geol. Trans. second series, vol. v. p. 452.