Abstract
On my return to London, after an excursion made in May 1857, in company with Sir Charles Lyell, Professor Ramsay, and Messrs. Prestwich and Godwin-Austen, to the district of Kent, from which fossils had been got which were thought to be of the age of the Crag, I made a memorandum on the subject, of which the following is a copy:— “With regard to the sands, &c., seen at Paddlesworth and elsewhere, accompanied by thin bands of iron-grit, I have seen nothing from which it would be at all reasonable to infer that the beds in question were any other than those of the Lower Tertiary (that is, of the Woolwieh and Reading series), occurring in their proper position on the denuded surface of the Chalk. “Beds like the Paddlesworth ferruginous sands':occur in the Hampshire Basin, where a part of the Woolwich and Reading series is represented by ferruginous clayey sands, with masses of ferruginous grit, &c*. Another strong resemblance is also borne by these last beds to those of Paddlesworth in the red colour of the sands, as may be observed more particularly at Whiteparish, in Wiltshire, where it would seem that when the mottled clays are replaced by sands the colouring matter is often persistent although the mineral character of the rock varies. With regard to the greater development of ferruginous grit at Paddlesworth, that alone is not enough to afford reliable evidence one way or the other, and in either case it might be a mere local

This publication has 0 references indexed in Scilit: