54 NEW YORK STATE MUSEUM 



Feet 



A 3 Waterlime; best exposure near the base of the 4J=714| 

 cliff at the waterfall. The measurements of 

 different parts of the zone vary from 3| to 4f feet. 



A 4 Tentaculite;thin bedded limestone, forming lower 31^=746 

 part of vertical cliff. Some of the layers con- 

 tain immense numbers of Tentaculites 

 gyracanthus Eaton. 



A 5 Transitional beds from the Tentaculite to the 14^=760^ 

 Pentamerus. Tentaculites gyracan- 

 thus Eaton has not been noticed in this zone, 

 which is a little below the middle of the cliff, but 

 Spirifer vanuxemi Hall reaches well 

 toward its top. 



A 6 Pentamerus limestone; the massive strata form- 52^812^ 

 ing the upper part of the vertical cliff. Beauti- 

 fully shown in the cliff on the western side of the 

 road, as may be seen in the accompanying picture, 

 in which it is represented by the upper massive 

 and most conspicuous part. The measurements 

 along this cliff vary from 49 to 52 feet for the 

 thickness of the Pentamerus. 



A 7 Largely covered slope to the south of the cliff and 160=972^ 

 east of the stream and road. In the field are 

 various outcrops of the thicker beds of the shaly 

 limestone, and in the edge of the woods the top of 

 the Becraft limestone is shown. Much better 

 outcrops of the shaly limestone, however, occur 

 to the east of these woods in the field and along 

 the western bank of a small stream, furnishing 

 an excellent collecting place. ,The following 

 species were obtained at this locality. 



1 Spirifer macropleurus (Con.) Cast. (c) 



2 S. perlamellosus Hall (c) 



3 S. cyclopterus Hall (a) 



4 Leptaena rhomboidalis (WilcJcens) H. & C. (c) 



