^{page 112 note 1} e.g. Johnson, D. W., Shore Processes and Shoreline Development, 1919.Google Scholar

^{page 112 note 2} Arber, E. A. N., The Coast Scenery of North Devon, 1911.Google Scholar

^{page 116 note 1} Johnson, D. W., The New England-Acadian Shoreline, 1925, 192, 334.Google Scholar

^{page 116 note 2} This region has been described by ProfessorJones, O. T. in Yapp, R. H., Johns, D. and Jones, O. T., “The Salt Marshes of the Dovey Estuary”: Jour. of Ecology, iv, 1916, 27–34.Google Scholar

^{page 116 note 3} Reade, T.Mellard, The Origin of Mountain Ranges, 1886, 184–90, pls. xxviii–xxx.Google Scholar

^{page 116 note 4} Swinnerton, A. C., “Observations on some Details of Wave Erosion: Wave Furrows and Shore Potholes”: Jour. Geol., xxxv, 1927, 171–9.CrossRefGoogle Scholar

^{page 118 note 1} Jones, O. T., “The Physical Features of Central Wales”: National Union of Teachers Souvenir, Aberystwyth Conference, 1911, 40–1.Google Scholar

^{page 118 note 2} Hor. Sect. Geol. Surv. Sheet 6.

^{page 119 note 1} Williams, K. E., “The Glacial Drifts of Western Cardiganshire” Geol. Mag., LXIV, 1927, 205–27.CrossRefGoogle Scholar

^{page 120 note 1} Jones, O. T., “The Geological Structure of Central Wales”: Quart. Jour. Geol. Soc., lxviii, 1912, 343.Google Scholar

^{page 120 note 2} Hor. Sect. Geol. Surv., Sheet 4.