[103] “Reliquiæ Diluvianæ,” by the Rev. W. Buckland, 1823, p. 19.

[104] “Elements of Geology,” p. 122.

[105] Quart. Jour. Geol. Soc., 1859.

[106] Revue des Deux Mondes, p. 925; March 1, 1847.

[107] “Carte des Anciens Glaciers des Alpes,” pp. 8-10. (1860.)

[108] Professor Ramsay, “The Old Glaciers of North Wales.” Longman, 1860.

[109] In 1840 Dr. Buckland described the occurrence of boulders of Criffel Granite between Shalbeck and Carlisle, and attributed their position to the agency of ice floating across the Solway Firth.

[110] Mr. Darbishire records seventy species from Macclesfield and Moel Tryfaen, taken together, of which 6 are Arctic, and 18 are not known in the Upper Crag.

[111] The typical species in West Lancashire are Tellina Balthica, Cardium edule, C. aculeatum, C. rusticum, Psammobia ferroensis, Turritella terebra.

[112] Geological Magazine, vol. iii., p. 483.