1895.1 NATURAL SCIENCES OF PHILADELPHIA. 147 



tra Har., Cytherea, Natica, Cerithium whitfieldi Heilprin, Pseudoliva 

 ostrarupis Harris, n. sp. P. ostrarupis Harris, n. var., iusus 

 ostrarupis, Harris, n. sp., Pleurotoma (Pleurotomella) anaeona 

 Harris n. sp., PI. (Surcula) ostrarupis Harris n. sp., Cerithium 

 penrosei Harris, n. sp. , Tellina (Leda) milamensis Harris large variety, 

 n. sp., and Leda milamensis Harris. 76 These fossils occur almost 

 altogether in the beds of blue clay. 



The section shown at this place is probably the uppermost beds 

 belonging to the Basal clays and No. 4 may represent a transition 

 bed between these and the overlying lignitic, as it partakes of some 

 of the character of both stages. The nearest known lignitic beds in 

 the river section are at the mouth of Pond Creek, two miles below, 

 but occur away from the river on both sides much nearer than this, 

 although no actual contact can be seen : 



'6 J 



(b. ) Section on C. Cribbs League, Between Two and Three Miles 

 Above (a.) : — 



1. Brown sand and gravel 2 feet. 



2. Yellow clay 4 



3. Ledge of silicious limestone, fossiliferous . . 2 



4. Yellow clay same as No. 2 . * 5 



5. Limestone same as No. 3 2 " 



6. Dark blue laminated clay showing lines of 



lamination on weathering 30 to 35 " 



< < 



1 1 



■&■ 



The fossils obtained from this locality embrace Cucullaia macro- 

 donta Whitf. , Yoldia chorea Conrad, Volutilithes rugata Conrad, 

 Venericardia altieosta var. Conrad, Cakjptrophorus velatus Conrad, 

 Nucula magnifica Conrad, Crassatella kennedyi Harris, n. sp., Fvsus 

 odrarupis Harris, n. sp., Dentalium sp., Turritella mortoni Conrad, 

 var., Ostrea pulashensis Harris, and Lucina. 1 " These fossils mostly 

 occur in the limestone ledges which here, although much altered in 

 texture and appearance, evidently represent the two beds found at 

 Elmo and on Rocky Cedar. The limestones here and at the next 

 section above are soft and easily broken, of a brownish gray appear- 

 ance on the outside but are grayish blue in the interior. They have 

 a tendency to break up and assume a nodular form. 



™ Harris MSS. 71 Harris MSS. 



