647 



PiNNU. 



looks; one of sev- 

 eral now in the col- 

 lection of the Mill 

 Greek Limestone 

 fossils belonging to 

 the Wyoming Hist. 

 Soc. at Wilke s- 

 Barre. See Heil- 

 prin's report (in 

 An. Kt.) page 455. 

 1000 feet above the 

 Conglomerate. If 

 there be any cor- 

 respondence of 

 thickness in the 

 coal measures of 

 eastern and west- 

 ern Pennsylvania, 

 this limestone must 

 represent the Great 

 limestone of the 

 Monongahela hitu- 



^\ minous coal series. 



A —XV, 



12 PINNA PERACUTA. 



^^^^■■^W' 



M 



5 " 



Pinnularia capillacea. (Lindley & BLutton, Foss. Flora. 

 XIII fzi I ^ol. 2, 



^^ pi. III.) 



L e s q . 



Geol. Pa. 



1858, pp. 



848, 878, 



pi. 17, fig. 



iii^i 



^ 



If 





LCSCj. in Geo/. Pa. 1^5% 

 14 



PI. 17. 



22 ; one of 



