94 NEW YORK STATE MUSEUM 



the north line of the Plantation and about 3 miles north of no. i. These 

 areas are shown on the accompanying map. While the rocks displayed at 

 these two places are included under the general term of Chapman sandstone 

 (Williams), there are highly noteworthy differences in the fauna at the two 

 areas of the outcrop which are expressed in the tabulation following. 



Prcsquc hlc stream section 



The general relations of the strata at the Presque Isle stream and 

 westward over the tract known as the Burnt land are shown in the 

 accompanying section, which may be described as follows in ascending 

 order. 



feet 



A Dark, fine grained sandstone; no fossils jfioo 



B Sandstones and shales, some of them much sheared. Fossils + 100 



C Thick-bedded sandstone exposed on both sides of the stream ; no 



fossils +_ 200 



D Thick-bedded sandstone as in C but containing fossils 25 



E Sandstone like that of D and C containing no fossils and marking 



the top of the section on both sides of the stream. 

 The dip in the section is 38 to 40 n. and the strike nearly east-west. 



Edmunds Hill section 



In this outcrop the rocks are heavy but broken sandstones with a dip 

 of 80 e. and a nearly north-south strike. The entire mass is overlain by 

 andesite and the fossils have been largely collected from the debris. 



There is a third exposure of the sandstone east of the Presque Isle 

 stream as indicated on the map but this has afforded no fossils. 



It is probable that the entire area between these several exposures is 

 occupied by the Chapman sandstone which with their accompanying 

 andesite intrusives thus occupy nearly all the area of the Chapman 

 Plantation. 



