In the number of this Magazine for July, 1866, p. 293, I ventured to characterize as “preposterous,” the opinion advanced by Mr. D. Mackintosh in two preceding papers (Geol. Mag., Vol. III. p. 69, and p. 163) that the very numerous terraces that occur on the sides of the Chalk and Oolitic hills of the southern and western counties were, “without doubt, raised Sea-beaches,” affording, therefore, evidence of the very recent elevation of these hills from beneath the sea-level, since the complete excavation of the existing valleys.