125 
A paper was first read, On the London and Plastic Clay for- 
mations of the Isle of Wight, by Mr. Bowerbank, F.G.S. 
The object of this communication is to show that there are no 
zoological distinctions between the London and Plastic Clays. Mr. 
Bowerbank first examined closely the strata of White Cliff Bay, and 
found the ascending order of the beds to be as follows :— 
Chalk. 
1. Variegated clay, principally red, corresponding 
with 6 and c in the Alum Bay section*.... ean 
2. Dark greenish grey sand, like that of the lowest 25 
art ots Alin Mai. glean acaispey reaps ner 
ov Red and yellow, samds))./1)2)s:c)a)tcceyars eid es) <1 27 — 
4, Dark greenish grey sand and clay, similar to 
65 — 
(iva inns Bene sete ye oe they et Leper ere era 
©. Red and yellow sands like those of Alum Bay 30 — 
6. Dark greenish gray sand and clay, in which 
were found Venericardia planicosta, Cari} 
and other London clay fossils............ 
Hea meoAL Cd SANG Si) sagaauerrcecse conc esednead adcens 6 — 
8. Dark greenish gray sand and clay.......... 186 — 
At different points in this interval the 
author found small Nummulites, with Lon- 
don clay species of Venus, Voluta, Ceri- 
thia, &c., and in one place large Num- 
mulites like those obtained at Bricklesome 
Bay, Sussex, associated with Venericardia 
planicosta, and other London clay shells. 
Sia) WEI ERR! SEUSS eae ela se Oe ddd gold t 10 — 
10. Dark greenish gray sand and clay like No.8. 54 — 
11. Variegated sands like those of Alum Bay.... 38 — 
12. Greenish gray, brown, and greenish brown 
This bed contains lignite, sharks’ teeth, 
Voluta luctator, Ostrea, and numerous other 
shells characteristic of the London Clay. 
13. Yellowish sandy clay, without fossils ...... 26 — 
14. Greenish sand similar to that of the upper 
marine in Colwell Bay, and containing ub 
parently, the same Venusica\:\ py\-419 oie 
15. Yellowish sand without fossils............ 14 — 
Beyond this point, freshwater beds, enclosing abundance of Po- 
tamides, are displayed. 
The above section proves, in Mr. Bowerbank’s opinion, that in 
White Cliff Bay there is an alternation of London and plastic clays 
throughout 525 paces, and that London clay fossils not only occur 
abundantly in the part which corresponds with the great mass of 
* See Mr. Webster’s section in Sir Henry Englefield’s Isle of Wight, 
Geol. Trans., 1st series, vol. ii., Pl. 11. 
