82 AN INTERESTING GEOLOGICAL LOCALITY. 



sons, I am strongly impressed with the belief that they 

 may be a layer of the Clinton group — overlying the red 

 conglomerate and sandstones. I was not able to search 

 them for fossiliferous evidence. 



There appears to be no foundation whatever for the 

 statements put forth by Horton and Mather, that iron 

 ore is here intercalated between the layers of limestone. 

 There is no trace of any ore in the limestone, but the 

 hematite, as is usual in such cases, lies in loose masses on 

 top of the rock, under and mingled with the drift in the 

 vallejr and against the western side of the hill. It has 

 evidently been derived, as in many other cases, from the 

 mutual decomposition of the adjoining layers of lime- 

 stone and the highly ferruginous shales which I have 

 just described. 



I now append a list of such fossils as I was able to 

 gather and examine ; but it is necessarily a very imper- 

 fect representation of the fauna existing in the rocks of 

 the locality. It may be regarded only as a preliminary 

 statement. I hope to make a more thorough investiga- 

 tion of the fossils represented in these interesting lime- 

 stones hereafter. The bryozoans are especially abun- 

 dant, and worthy of study. 



The only fossils mentioned by previous explorers as far 

 as I can ascertain, are "encrinites" by Horton, and "the 

 characteristic fossils of the delthyris shaly," by Mather. 



I. Waterlime group, Tentaculite division. 



Leperditia alta, abundant. 



Atrypa plicata, one specimen. 



Stromatocerium ? numerous specimens, two inches in diameter and less-. 



No tentaculites were found. 



II. Lower Pentamerus. 



Pentamerus galeatus, one specimen. 



Hemipromites radiata, several. 



Strophodonta variastriata, two. 



Atrypa reticularis, several. 



Spirifer perlamellosa. 



3<4 



