IIS NEW YORK STATE MUSEUM 



About | of a mile southeast of Marcellus village is Dunk's 

 hill, a knoll 40 on 50 feet high. The Agoniatite limestone 

 appears here in a grade cutting on the west side of the hill 

 and again in a field on the south side, and over a 

 considerable area it is covered by only a thin layer of soil. Its 

 thickness is 2 feet 6 inches in two layers. In the immediate 

 vicinity of this locality are other outcrops which the searcher 

 for the interesting fossils of the limestone would do well to 

 exploit. It may be noted however, that frequently the rock is too 

 deeply seamed and etched by weathering to justify the labor, 

 often great, of attempting to collect from it. It is not only of 

 impure character, but the purer calcareous matter is arranged 

 in spots and patches in such a way as to afford least resistance 

 to decomposing agencies. This is notably the nature of the 

 rock in the exposures in Dunk's hill. Another small outcrop 

 occurs in the side of the road about a mile farther toward Cedar- 

 vale and again across the valley toward the southwest, where 

 the rock is very compact and lies close to the surface over a 

 large area. 



Slate hill is situated about f of a mile southeast of Mar- 

 cellus village, having the valley of Nine-mile creek on the 

 west. It is composed of black and dark blue shales and shows 

 on the north side along the road at its base a slight exposure 

 of the Agoniatite limestone, and the dark calcareous shales 

 beneath are exposed for a thickness of about 3 feet, on the south 

 side of a neighboring depression. On the dugway road up the 

 hill, black fetid shales are exposed to a thickness of about 20 

 feet, and above them on the west slope of the hill the upper 

 blue black shales are shown. We shall observe in more west- 

 ward sections that the horizon of the Stafford limestone is 

 approximately at the junction of these bituminous beds with 

 the blue black shales above. 



Other outcrop® occur about \ mile east of St John's school, 

 Manlius, and on the east and ^vest sides of Onondaga Valley. 

 On the west side near Dorwin's spring the rock is 130 feet lower 



