198 



Dr. PiTTON on the Strata below the Chalk. 



[As the Weald-Clay and its passage into the sands beneath are better displayed here than in any 

 other place with which I am acquainted, I shall subjoin a more detailed enumeration of the beds, 

 collected from the successive portions of the ruinous cliff, which, when I examined the place, were 

 well exposed on the shore at Tiejilt, thence to Shepherd's Chine, and within that Chine itself and 

 Cowleaze Chine. This list is still no more than an approximation ; but time and labour only 

 are required to carry the enumeration to any extent of detail : it begins almost immediately be- 

 neath the remarkable bed above mentioned as abounding in fossils (4725 — 4775), which may be 

 considered as the lowest member of the Lower green-sand.] 



Ft. In. 



■12 



A group of beds, full of crystals of sul- 

 phate of lime, perhaps produced by 

 exposure : — detail thus : 



a. Clay, with much pyrites .... 



h. Greenish and blue slaty clay . 



c. Clay and sand, in thin alternate 



course, including minute bones 



of fishes 



Dark bluish grey slaty clay, with thin 

 courses of very fine light greenish 

 sandy clay 



A bed of limestone, with thin oyster- "i 

 shells (or Gryphites ?) indistinct . . j 



Shale, as above, abounding in Cypris-\ 

 Valdensis, and including a bed of >■ 

 pyrites with Paludina elongata. ... J 



A course of limestone, with Cyclades "I 

 at the bottom J 



Thin, paper-like courses of sand, alter- ] 

 nating with slaty clay | 



Bluish gi"ey shale, with small bones of 

 fishes and some crystals of sulphate 

 of lime 



Sandy clay of a lighter hue 



Bluish grey shale, with Cypris and fish 1 

 bones J 



Greenish grey shale ; the folia pene- 

 tratedby cylindrical and vertical por- 

 tions (likestems) of lighter grey sand 



Flat nodular portions of very poor clay "I 

 iron-ore J 



Greenish, very sandy, clay 



Greenish grey sand and clay in thin 1 

 courses, alternating with dark, tough, 

 slaty clay, containing clusters or }• 1 

 patches ofCyclas media with Cypris 

 Valdensis 



Lighter coloured slaty clay, containing] 



Cypris; alternating with grey and r 10 

 whitish, somewhat sandy clay ....-' 



8 



3 



1 3 

 3 



4 



2 



1 6 



3 



►20 



Greenish grit, containing numerous]^ 

 empty moulds of Cyclades J 



Yellowish sand-rock, with lines of false 



stratification 



[A line of darker hue occurs in the 



group. Qucs. Remains of bones ?] 



[The preceding group of grit and 

 sand-rock, which is not improbably 

 the equivalent of one of Mr. Martin's 

 beds subordinate to the Weald-clay, 

 first appears on the shore about the 

 opening of Shepherd's Chine; and 

 rising thence gradually westward, oc- 

 cupies about 20 feet in the side oi Cow- 

 leaze Chine, near the middle.] 



Beds of greenish grey sandy clay, of 

 two shades of colour, alternating with 

 specks of mica. A range of nodules of 

 iron-ore is within a few inches of the 

 top, containing Paludinse and Cyclades. 



Total thickness about 1 40 feet. 



I sought here, but without success, for remains of the large Saurians like those of Loxwood and 

 Tilgate forest. Nor were there visible upon the shore any continuous masses of subcalcareous 

 grit.] 



1 6 



2 



2 



Ft. In. 



Similar beds, including pyritous wood -^ 

 and pyrites, with a band of siliceous 

 limestone, curiously embossed at the 

 bottom with Cyclades converted into 

 carbonate oflime (see 5 700; p.l97). 



Similar beds 8 



Shale with Cypris Valdensis 4 



^70 



Sandy clay, including a bed 6 inches"! , ^ 

 thick, of great firmness J 



White sand-rock 1 



Sandy clay and shale 8 



Ditto, of lighter colour 1 



Beds of sand and clay, including no- 

 dules of iron-ore 



6 

 

 



4 



Greenish white sand in stripes .... 2 — 4 

 Apparently light greenish sand and"! 



brownish sandy clay 



12 



15 0? 



