fitton's section at atherfield. 305 



the specimens have not exactly been ascertained, but is supposed to 

 be about ten or twelve |. I have myself seen but few of these in situ^ 

 but have no reason to doubt the statement of my collector, who 

 pointed out their places. At the top of the sand above-mentioned 

 (16), the first or lowest range of Crioceras rises on the west of Whale's 

 Chine, and is succeeded by two other ranges, all three enclosed in sand 

 about nine feet thick. The lowest range is said to have furnished the 

 finest specimens. The sand around them and above retains impres- 

 sions such as might have been produced by amass of vegetable stems 

 which have altogether disappeared, leaving only their compressed 

 moulds in the sand or mud through which they were diffused. 



23. A fourth range of nodules crosses the bottom of Whale's Chine, 

 whence all the ranges together dechne gradually into the sea. 



Fossils of the Crioceras Range 17 to 23. 



19,20. Panopaea plicata, -Sow. fPecten orbicularis ?, Sow. 



Area Gabrielis, Zeyw. 17,18,"! fOstrea prionota, Goldfuss. 

 (A. exaltata, iVi&«o»?) 19. J Terebratula Gibbsiana ?, -Som?. 



17. Anomia radiata. sella, *S'ow;. 



Area Cornueliana?, d^Orb. 20? fOstrea earinata, .-5 



lo ctgi -(-* consobrinus, d'Orb.id ^issl: S£ ih- Gryphsea sinuata, SoWi] 



t'? ^18^20. Serpula plexus. ^ Scaphites gigas. 



- Corbula striatula, aSow. *Ammonites Martini, tZ'OrS. 



TLetis minor, Sow. 17,19,"I *Crioceras Bowerbankii, Sow. 



Gervillia anceps (20), Desh. 21,23. J {Ancyloceras, d'Orb.) 



Whale's Chine. — The eastern side of this chasm is about 140 feet 

 high, the opening at its upper part about 180 feet wide. The di- 

 stance from the shore to a bridge over the streamlet which empties 

 itself at the Chine, is about 300 yards ; the Crioceras beds, rising 

 gradually inland, are visible in the banks, and would no doubt supply 

 good specimens. The relations of the succeeding beds 24 and 25 are 

 visible within the Chine, where they contain numerous fossils. 



Whale Chine. Ladder Chine. Walpen. 



It will be observed that the eastern side of Whale Chine stands 

 out somewhat prominently, dividing the undercliff, and rising imme- 

 diately from the shore to the height of about 140 feet; so that the 

 Chine must have cut through the strata when the general face of these 

 chffs was much nearer to the sea than at present. The chasm inter- 

 rupted the descent of the waters coming from the western portion of 

 the inclined stratum of clay No. 25, at the same time draining, and 

 giving additional solidity to the mass on its eastern side. A renewal 

 therefore of the undercliff commences gradually on the east of this 



X If the genera Scaphites and Crioceras be identical, as Professor Edward Forbes 

 supposes, No. 15 will be the first or lowest range of this group, and the whole 

 number of ranges will be fifteen or sixteen. 



