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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1833 Excerpt: ...clay, &c.: there are, probably, five or six alternations of it; and in the upper divisions of the clay, septaria, composed of a deep red argillaceous ironstone, occur, in layers of two or three feet in thickness, which dip in conformity to the general inclination of this formation.t At Resting-oak Hill, on the Chailey road, about four miles to the N. N. W. of Lewes, a fine section of these septaria was lately exposed, by the removal of the summit of the hill, for the improvement of the road. The indurated marl, which formed the nuclei of the septaria, was of a pale yellowish grey colour, and so hard and fine as to be employed by the peasantry and carpenters to set their tools t; the ironstone surrounding it contained the remains of shells of the genera cyclas and paludina in great abundance; the scales and bones of small fishes; and myriads of the shelly coverings of the Cypris faba. To the. politeness of Sir Charles Merrick Barrel, Bart., M.P., I owe the knowledge of this interesting fact. T In the west of Sussex, the following, according to Mr. Martin, is the order in which the strata of the Wealden occur, --viz. 1. Stiff clay, with concretional ironstone. Bones of vertebrated animals; pal iidiiut, cyclades, cyprides. 2. Yellow and fawn-coloured sand. Endogcnites crosa. 3. Clay with Sussex marble. Bones, paludinae. 4. Micaceous fawn-coloured sand, with masses of calcareous grit. 5. Clay with Sussex marble. 6. Fawn-coloured micaceous sand alternating.with beds of red clay, friable sandstone, and calcareous grit. Bones of vertebrated animals. 7. Soil, a clay country of uniformity of aspect, and of moderate fertility. J At Wapping-thorn Hill, near Steyning, septaria of argillaceous ironstone were lately found, and applied to the same purposes. I am indebt...

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