in the Viciniti/ of Lyme Regis, Dorset. 



25 



Compact grey limestone . 



Dark slaty marl 



Compact grey limestone, with 

 abundant remains of Plagio- 

 stomae and Gryphaea incurva ; 

 (varying from 4 to 9 inches) 



Marl and slaty marl, with oysters-* 

 (Gryphites ?) and Plagiostomae J 



Compact grey limestone (4 to 6 inches) 



Dark marl . . . . . 



Compact grey limestone . 



Dark marl, with flat elongated nodules 



Nodular grey limestone (2 to 4 inches) 



Dark marl . . . . . 



Nodular compact grey limestone (2 

 to 6 inches) 



Slaty marl .... 



Compact grey limestone 



Dark marl .... 



Eight thin limestone beds, alter- 

 nating with eight thin marl beds 



Compact grey limestone 



Slaty marl 



Compact limestone 



Thin seam of marl . 



Compact grey limestone 



Slaty marl 



Compact grey limestone 



Dark marl 



Thick 



ness. 



Ft. 



In. 



. 



4 



. 1 



2 







6| 



1 



} 







5 







4 







4 



2 











3 







3 







4 



3 











3 







3 



3 











8 



3 











6 















4 







4 







4 



2 



6 



} 



Grey limestone 



Thin seam of marl . 



Compact grey limestone 



Thin marl bed 



Thin grey limestone bed 



Thin marl bed 



Grey limestone 



Slaty marl 



Grey limestone 



Dark slaty marl 



Yellowish earthy limestone 



Thin seam of yellowish white marl , 



Yellowish white limestone mixed~j 

 with grey, containing numerous I 

 casts of univalves, bivalves, and }► 

 small corals (varying from 4 to I 

 6 inches) . 



Thin seam of marl . 



Yellowish white limestone 



Thin seam of marl 



Yellowish white limestone 



Indurated grey marl 



Thin bed of light. coloured marl 



Yellowish white limestone, some" 



Thickness. 



Ft. In. 



. 5 



. 



5 



6 



6 



6 



3 



8 



3 







5 







5 







6 



6 







portions of which are rather com. 

 pact, and others marly, but the 

 general character is earthy ; — 



18 



in obscurely divided beds 



Several faults are observable in the strata of the lias formation^ between 

 the rise of the four-foot marl bed beneath Black Ven, and Culverhole Point; 

 ten such faults at leasts of various extent, being exposed to view, and many 

 more probably concealed beneath the fallen masses of chalk and green sand. 

 In several places these fissures may be traced to a considerable distance among 

 the horizontal ledges of rock which are dry at low water; and in one instance 

 the termination of the crack constituting the fault is discernible on the shore 

 near Seven-rock Point. This fissure, which is easily recognised in the cliff, is 

 visible for some distance, running out towards the sea ; but after continuing for 

 several yards in an uniform direction, the beds unite, and at that place form a 

 considerable curvature. The fault at the bottom of Pinhay Cliff is represented 

 in PI. III. fig. 2. 



VOL. II. — SECOND SERIES. E 



