XIV 



Page [oi. — Woodcut. Later observations made at tbis quarry, wliicb bas been extended, give 



tbe f'ollowinn; section : 



o 



The section in the quarry ;it Congletou Edge, where tbe Dit/ii/rocaris and Ceraliocaris were found in the strata 



marked A*. 



At tbe top. Grey-yellow clay, witb blocks of grit : to 5 feet. 



Decomposed limestone, crowded witb erusbed sbells of Orthis resupinata : 5 ft. 2 in. 



Grit : 1 foot. 



Grey sbales : 3 feet. 



Shale with half-iucb bullions : 9 inches. 



Very sandy shales : 2 to 4 inches. 



Shale with slightly calcareous bullions ; marine fossils : 5 ft. 7 in. 

 _ Eatber darker shale, witb two lines of bullions : 3 feet.' 



Calcareous sbales witb Qoniatiies : 8 inches. 



Eatber darker coarsely laminated sbales, with Glyphioceras gpimle, PosidonieUa Ixvis, 

 B^ and plant remains : 1 foot. 



Shale with calcareous bullions and marine fossils : i feet. 



Coal : i inch. 

 C Gannister grit with plant remains : 5 ft. 8 in. 



Flaggy grit with thin black shale partings: 2 feet. 



Shale : 3 to 4 inches. 



Grit (Gannister) : 1 ft. 6 in. to 2 feet. 



Shale and thin grits : 1 ft. to 1 ft. 6 in. 



Grit (Gannister) : 5 ft. G in. 



Shale much squeezed : 2 feet. 



Grit : 1 foot. 



Coal : I inch. 



Grit (Gannister) witb plant remains : 11 feet. 



Shale with many plants : 3 inches. 



Grit : 1 foot. 



Shale : 4 ft. 6 in. 



Grit (Gannister) : 3 ft. 6 in. 

 ' Tliis is the horizon at which Dithyrocaris testudinea and Ceratiocaris Orelonensis were found. 



