444 



PKOCEEDINGS OF THE OEOLOGICAL SOCIETY. [June 18, 



Atherfield. -■ 



^ Cowleaze Chine. 



60 



g 

 1-^ 





a 



< 



r« 



^ 





Barnes Chine. 



Grange Chine. 



Chilton Chine. 



Southmore. 



Brook Chine. 



Brook Point. 



. o 



CD TS 



-f o 



lis 



!i ^ 3 



® ^ r-! 



o ^ ® 



^ O) © 



'^1 '§ 

 cc cc >■ 



III 



I have met with several other 

 specimens, some of them of 

 very considerable size, in the 

 "Wealden beds near Compton 

 Bay, Isle of Wight. Of these 

 I have secured seven speci- 

 mens. They are large trifid 

 casts, each having theposterior 

 portion more or less elongated, 

 like the specimen indicated by 

 the diagram, fig. 1, p. 396, 

 Quart. Journ. Geol. Soc. vol. 

 viii. One of them (fig. 2) I had 

 raised from its natural posi- 

 tion, as a mass attached to a 

 thin bed of hard sand-rock, in 

 reddish clay, on the shore at 

 low water, between Brook 

 Point and the Chine to the 

 west of it (see section, fig. 1). 

 The other specimens were 

 found loose on the clay of the 

 shore at low water, and were 

 more or less worn by wave- 

 action. 



These all have the usual 

 three divergent, toe-like pro- 

 jections, varying in propor- 

 tional size in the several speci- 

 mens, and radiating from a 

 palmar mass ; but, in addition, 

 the hinder portion forms a 

 long tapering projection. In 

 the largest (figs. 2 & 3), the 

 whole length of the block is 

 3 feet 4 inches, but 3 feet 7^ 

 inches if measured along the 

 curvature of the base; the 

 breadth across the toes is 27 

 inches; across the " heel," just 

 behind the central mass, 14 

 inches. The thickness, where 

 the imprint of the toe (A) is 

 represented by the natural cast, 

 is 12 inches ; where the pal- 

 mar protuberance (C) has sunk 

 into the pressed clay, 15 

 inches ; and where the hinder 

 part of the foot, or the meta- 

 podial portion, has impressed 



