52 



Thickness, 

 feet, metres. 



3. An impure blue limestone with little or no 

 chert and a great many corals scat- 

 tered through it. Bedding planes 

 rough and irregular, often shaly and 

 containing much carbonaceous matter. 2-6 -714 



2. A rather massive, sub-crystalline, bluish 

 gray limestone with partings of a 

 greenish shale. This shale is found 

 chiefly in the middle and lower part, 

 and is said by Mr. Pettingill, chief 

 chemist at the cement plant, to have 

 a composition analogous to that of 

 glauconite. The bedding of this mass 

 is often rough and irregu'ar. Corals 

 are abundant and well preserved, but 

 almost impossible to collect. At the 

 east side of the quarry these layers 

 come to the top and show several sets 

 of glacial striae on the exposed surface, 

 the most prominent of which run S. 40 

 W. These beds vary considerably in 

 thickness, but the full amount here 

 given is exposed along the east side 

 of the quarry. This massive portion 

 of the Onondaga is quite persistent 

 and may be traced eastward into 

 New York state 18-5 5-643 



I. Massive grey 1 mestone, passing down- 

 wards into a slaty grey to brown 

 impure limestone. These beds are 

 streaked with semi-crystalline bands 

 in which fossils are more abundant. 

 They extend to the bottom of the 

 water hole at the west side of the 



quarry 10 3-05 



The fossils found at this locality are given in \he 



second column of the accompanying table. 



The large mound, three-quarters of a mile to the 



south of the cement plant is Sugar Loaf — a sand dune 



which is covered with vegetation and therefore stationary. 



Other dunes a short distance to the west are in a partial 



state of active migration. 



