8 9 



Thickness. 

 Feet. Metres. 



stand out in relief on the matrix. Near the 

 northeast corner of the house there is exposed 

 a glaciated surface, on which sections of the 

 corals show beautifully 5 • 5 ! ' 677 



Springvale sandstone. 



3 — Coarse white to yellowish sandstone. 

 The lower portion of these beds is rather 

 massive, while the upper layers are somewhat 

 irregular and seem to contain more fossils. . . 8 2-44 



Oriskany (?) cherts. 



2 — Arenaceous blue shale -58 -175 



1 — Irregular beds of bluish-grey chert 

 with a few thin calcareous layers. These 

 lower beds contain only a few fragments of 

 fossils and extend to the bottom of the section 

 in the run 3 • 1 6 • 966 



The list of fossils from this locality is given in the 

 third column on page 92. 



Section at Springvale. — The slight terrace to the 

 west of the highway near Springvale is caused by the 

 same sandstone ledge that has just been observed at the last 

 section. It lies under a very thin covering of drift and in- 

 fluences the topography for a distance of several miles. 

 In the sugar-bush at the southern end of the village is 

 one of the best gas wells of the locality. It is the chief 

 source of fuel for the lighting and heating of this com- 

 munity. In the village proper is an old quarry and lime- 

 kiln, in which about 10 feet (3-05 m.) of Silurian dolomite 

 is exposed. These rocks contain a few fossils, such as 

 Orthothetes hydraulicus Whitfield, Goniophora dubia 

 Hall, Leperditia alta Conrad, etc., which tie them to 

 the Monroe group of the western part of the peninsula. 



On John Winger's farm, one half mile west of the vil- 

 lage, and at a number of other places along the ridge 

 the Springvale sandstone has been quarried for local use, 

 so that nearly the entire thickness may be seen. In the 

 fields above the quarry the higher beds of the Onondaga 

 are just under the surface, outcropping here and there, 

 and fossils from it are scattered over the surface in great 

 abundance. The most common of these are specimens of the 



