^{page 447 note 1} The title given by the editor to the short abstract in the Society's Journal (Vol. xxiii. p. 265) is not quite correct.Google Scholar

^{page 447 note 2} Hutton's Theory of the Earth, vol. ii. p. 238.Google Scholar

^{page 448 note 1} The Theory of the Earth, 2 vols., 8vo.; Edin., 1795.See especially vol. 1. p.304, and vol. ii. pp 3–5, 98, 99, 138–40, 143 (quotation from the French), 157, 205, 209, 210, 236, 245, 295, 296, 401, 466–8, 498, 528, 529, 534, 535, 547.Google Scholar

^{page 448 note 2} Illustrations of the Huttonian Theory, 8vo.; Edin., 1802. Reprinted in vol. i. of Playfair's Works, 1822. See pp. 105–7, 110–14, 373–6 of the original edition ═pp. 117–19, 122–5, 370–2 of the later one.Google Scholar

^{page 448 note 3} Memoir on the Geology of Central France, 4to., Lond., 1827. Ed. 2, 8vo., 1858 pp. 37, 38, 97, 158, 159, 205–9, 213, 244;Google Scholar and Geol. Mag., Vol. III. p. 193 (1866). Scrope, Mr. touched on the subject before in his “Consideration on Volcanos,” 8vo. Lond., 1825 (pp. 96, 97, 138, 139, 214, 215).Google Scholar

^{page 449 note 1} Essai, . sur la constitution géognostique des Pyrenees, 8vo., Paris, 1823, p. 25.Google Scholar

^{page 449 note 2} Rain and Rivers, 8vo, Lond., 1857. Ed. 2 in 1866.Google Scholar

^{page 449 note 3} Phil. Trans., vol. 154, p. 247;CrossRefGoogle Scholar Quart. Journ. Geol. Soc., vol. xix. p. 497 (1863).Google Scholar

^{page 449 note 4} Quart. Journ. Geol. Soc., vol. vi. p. 94 (1850); vol. vii. pp. 121–6, 130, 134 (1851); vol. xi. pp. 118, 119 (1855); vol. xiii. pp. 63, 71 (1857).Google Scholar

^{page 449 note 5} Ibid. vol.xviii. p.185 (1862); Phil. Mag., vol. 28, p. 293 (1864); vol 29, p. 285. (1865);CrossRefGoogle Scholar The Physical Geology and Geography of Gt. Britain, 8vo., Lond. Ed. 2. (1865).Google Scholar

^{page 449 note 6} Brit. Assoc. Rept. for 1861, Trans. of Sections, p. 54;Google Scholar Quart. Journ. Geol. Soc., vol. xviii. p. 378 (1862);Google Scholar Geol. Mag., vol. iii. p. 232 (1866), vol. iv. p. 444. (1867).Google Scholar

^{page 449 note 7} Bull. Soc. Geol., France, 2 Ser., t. xii. p. 314 (1855).Google Scholar

^{page 449 note 8} I believe that: Professor Ramsay started this argument against the marine origin of escarpments.—W. W.Google Scholar

^{page 450 note 1} Quart. Journ. Geol. Soc., vol. xxi. p. 443 (1865).Google Scholar

^{page 450 note 2} Geol. Mag., Vol. III. p. 435 (1866), and Vol IV. p. 184 (1867).Google Scholar

^{page 450 note 3} Notes of Travel by Vacation Tourists, 1861.—The Geology and Scenery of Scotland, (1865).Google Scholar

^{page 450 note 4} Geol. Survey Memoir on Sheets 81 N.W. and S.W., P. 86 (1866).Google Scholar

^{page 450 note 5} Geol. Mag., Vol. III. pp. 344, 439, 575 (1866).Google Scholar

^{page 450 note 6} Quart. Journ. of Science, vol. iv. p. 33 (1867).Google Scholar

^{page 450 note 7} Mem. Geol. Survey, India, vol. v. p. 201 (1866)Google Scholar.—Geol. Mag., Vol. IV. pp. 3, 345 (1867).Google Scholar

^{page 450 note 8} Quart. Journ. Geol. Soc., vol. xvii. p. 1 (1861).Google Scholar

^{page 450 note 9} United states Exploring Expedition during the Years 1838–1842, vol. x., Geology, 4to., Philadelphia, 1849, pp. 384–92, 526–33, 670–7.Manual of Geology, 8vo., Philadelphia, 1863, pp. 635–42, 676.Google Scholar

^{page 450 note 10} Quart. Journ. Geol. Soc., vol. xx. pp. 125, 126, 128–30 (1864), where references to the author's other notes on the subject are given.Google Scholar

^{page 450 note 11} Notes on a Map to Illustrate Five Types of Earth-Surface, 4to., Philadelphia, 1866.Google Scholar

^{page 450 note 12} Geol. Survey, Canada—Rept. of Progress to 1863, 8vo.,Google Scholar Montreal, p. 889.Google Scholar

^{page 450 note 13} Part 3 (Geology) of Lieut. Ives' Eeport on the Colorada Eiver of the West 1861. References to other remarks on denudation by this author are given in Professor Hind's paper referred to above.

^{page 450 note 14} Report on the Geological Survey of the State of Wisconsin, vol. i, pp. 117–26 (1862).Google Scholar

^{page 450 note 15} Report on the Geology of Canterbury, New Zealand;—andGoogle Scholar Quart. Journ. Geol. Soc., vol. xxi. pp. 129, 130 (1865).Google Scholar

^{page 450 note 16} Quart. Journ. Geol. Soc., vol. xx. p. 463 (1864)–in abstract only. The paper has been printed in full in Trans.Google Scholar Nova Scotian Institute of Nat. Sci., Vol. I. part iv. p. 91.Google Scholar

^{page 450 note 17} Geol. Mag., Vol. III. p. 88 (1866).Google Scholar

^{page 451 note 1} It would be overburdening this paper with foot-notes were I to acknowledge the many sources whence some of the following arguments have been in great part derived; enough to refer the reader to the list of authors given before. I would gladly have quoted largely from Hutton, Playfair, Scrope, and others, but the paper would have been much lengthened thereby.

^{page 452 note 1} Geol. Mag. Vol. II., p. 26. (1865.)Google Scholar

^{page 452 note 2} 1865. pp 351–5. As Sir Charles does not now hold that these needless are signs of the action of the sea (see before, p. 449), it might be thought needless here to controvert that idea. However, as it is contained in the last edition of his “Elements,” a work constantly referred to by geologists, I have let this paragraph stand.Google Scholar

^{page 453 note 1} Geol. Mag., Vol. III. p. 571.Google Scholar

^{page 453 note 2} Hutton, , “Theory of the Earth,” vol. ii. p. 367.Google Scholar

¹ Professor Ramsay has noticed the great thickness of solid rock that must have been denuded in Wales (Mem. Geol. Surv. vol. i. p. 297, and plates. 4, 5, 1846; and vol. iii. p. 236, and pl. 28, 1866). I believe that the former of these was the first attempt at showing the vast amount of denudation that has taken place.Google Scholar