^{page 97 note 1} The author wishes to state, that, when this article was written, the January Number had not appeared, and he was unaware of the fact that his colleague, MrMiller, Hugh, had written upon the subject (see Geol. Mag. 01, 1876, p. 23).CrossRefGoogle Scholar

^{page 97 note 2} Jukes and Geikie, Manual, third ed., p.455

^{Page 97 note 3} Op. cit. p. 456.

^{page 97 note 4} Elements, sixth ed., p. 78.

^{page 98 note 1} Op. cit. p. 79.

^{page 98 note 2} Phys. Geol. and Geog. of Great Britain, third ed., p. 117.

^{page 98 note 3} Op. cit. p. 96.

^{page 98 note 4} Op. cit. p. 221.

^{page 98 note 5} Op. cit. p. 263.

^{page 98 note 6} Lvell—s Elements, p. 363.

^{page 98 note 7} Geol Mag. Vol. IV. pp. 81, 82.Google Scholar

^{page 98 note 8} Op. cit. pp. 138, 296.

^{page 98 note 9} Mentioned by Mackintosh in op. cit. p. 139.

^{page 99 note 1} De la Beche, Researches in Theoretical Geology, p. 170.

^{page 99 note 2} Jukes and Geikie, p. 397.

^{page 100 note 1} Geol. Mag. Vol. IV. p. 7.Google Scholar

^{page 100 note 2} Geological Report on Cornwall and Devon, p. 490.

^{page 100 note 3} Phys. Geol. and Geog. of Great Britain, third ed., pp. 316, 317.

^{page 101 note 1} Lyell, Elements, sixth ed., pp. 42, 363; Jukes and Geikie, p. 397.

^{page 101 note 2} Geol. Mag. Sept. 1875, p. 427.

^{page 103 note 1} It is possible that a scar of limestone or sandstone, however first originated, may in certain situations accumulate débris faster than subaerial agencies can remove it, and that old pre-glacial scars were uncovered by glacial erosion. On the other hand, as one of the results of the Glacial Period, we have, as seen in railway cuttings, old scars covered up by glacial drift, and being gradually uncovered by rain and rivers.

^{page 105 note 1} Phys. Geol. and Geog. of Great Britain, third ed., p. 141.

^{page 105 note 2} Topley, , Geol. Mag. Vol. IV. p. 185.Google Scholar