202 



THE GEOLOGICAL STKUCTUEE OF THE 



Rackledown ^ Farm. 



CoNCAVi. 13a. Greyish limestone, about 



BRADroEDENis 14. Very dense, pinkish-red, crystalline 

 AND limestone. The top of bed some- 



MuRCHisoN^. what planed off and covered with 

 ferruginous nodular lumps. Zeilleria 

 anglica, Rhynchonella Stephensi'?, 

 Myaeites a,^. Jurassi^ 4 9 



15. Tough crystalline limestone, yellowish- 



grey, with scattered iron-grains ... 1 7 



16. Earthy limestone with scattered iron- 



grains, with interwedgings of irregu- 

 lar, compressed, ironshot, sandy 

 clay. Ludwigia cf. ohtti^a, on spoil- 

 heap with matrix similar to this bed 5 



QpALiNi? 17. Pinkish-grey, ironshot, somewhat cry- 

 stalline limestone. Pholadomya 

 Jidicula 



Village. 



18. Stiff clays with grey sandstone bands ^ 

 by the " Rookery ' ' and above ' ' Spring 

 Farm " 



19. An isolated block of the bifrons-heds — 

 a pinkish stone, coarsely ironshot. 

 Harpoceras sp. 



20. Yellowish clay. 



21. Pinkish-grey earthy stone. Pseudo 

 lioceras sp. 5 inches. 



22. Strongly ironshot, somewhat variable, / 

 massive stone-block, with belemnites, 



Pseudopecten cequivalvis, Terebratula 

 punctata, and Ostrea in bottom 2 

 feet 



Note. — The Marlstone, where it outcrops on the opposite side 

 valley, contains Amaltheus margaritatus and Rhynch. tetraedra. 



East Dundry 



DUMORTIERI^ 



(DiSPANSI TO 

 BiFRONTIS.) 



Falciferi. 



Spinati and 

 ? Mabgaritati 



6 9 



2 8 



55 



5 6 

 of the 



^ On the 6-inch Ordnance map spelt " Rattledown." 

 2 From this bed, judging by matrix, a fine Ludwigia aff. ohtusa, Quen- 

 stedt, in the Bristol Museum, was obtained ; also the specimens of Cirrus. 



