Fig. 1. — Vertical Section of Beds at the North-east comer of Ileadon Hill. 

 (Scale, 8 feet to the inch.) 



Bembridge Limestoste 25 feet. 



Osborne beds 70 „ 



Upper Headox 49 „ (total). 



ft. in. 

 1 



6§-8 



3 

 ( 9in.-2ft. 

 6 in. 

 6 in. 

 ft. in. 

 1 10 



9 2 



3- 



3 



2 6 



6 

 1-1 3 



Part of thick Limnoca- limestone. Limnoeafusiformis, &c. 

 Laminated greenish clay, with broken Paludina. 



Whity-brown to buff sands, with layers of lignitie matter. 



Greyer sands below. Potamomya, Melania muricata, TJnio, Paludina lenta. 

 Lignite. 



Greyish-green clays. C. ven- i Vicarya concava, Marginella vittata, Neri- 



tricosicm-bedi with J Una concava, Melania muricata, &c. 



"•Limnasa- limestone, soft and crumbling, with a thin lignite at top. 

 •••Verdigris- green clay, with rootlets. 

 Lim /iffia-limestone . 



Stiff green clays with conehoidal fracture in drying. 

 Oyster-bed towards the base. 



/ Fusus labiatus, Mel. fasciafa, M. muricata, 

 Clay becoming greyer below. J Nerita aperta, Cer. variabile, C. pseudo- 



Fossils j cinctum, Ostrea velata, Mytilus affinis, Cor- 



(, bicula obovata, Lucina colvellensis. 



Alternating grey and ochry clays. 



Venus-bed.," richest portion, con- J 

 tains scattered flints, brown sandy J 

 clay becoming green clay and sand : 

 below. Fossils 



Thin grey sandy clays, 

 weathering brown. 



Cyth. incrassata, Mactra fastigiata, 

 Mya angustata, Corbicula obovata, 

 Nucula lissa, N. keadonensis, Trig, 

 deltoidea, Fusus labiatus, Cancell. 

 elongata, Melanopsis fusiformis, 

 Voluta spinosa,Vic. concava, Natica 

 Studeri. 



Cytherea incrassata &c. scattered throughout. 



Mya angustata, especially near base. 



. , , , . , . , j c Trig, deltoidea, Cer. pseudocinctum, 



Chocolate-brown or blackish sands. { labMat ^ Melan. fusiformis. 



TrigonocoBlia-bed. 



Blackish-brown sands, Neritina-b&di : N. concava, M. fusiformis, C. obovata. 

 Very stiff tenacious clay. 



Zimwcea-limestone, "How-Ledge limestone:" L. longiseata, fusiformis, &c. 



Whity-brown or yellow sands and sand-rock, with layers of Paludina and 

 Potamomya. 



[The base concealed by tumble and undercliff.] 



