446 NEW YORK STATE MUSEUM 
Sprakers, 25 miles to the west. Nos. 4 and 5 of this section are 
at some distance from each other but their lithologic and paleon- 
tologic characters clearly show them to belong to distinct parts of 
the Trenton substage. The layers of no. 5 are highly inclined but — 
as their parallelism with reference to each other has not been de- 
stroyed the thickness given for them is fairly exact. 
Northwest of Van Epp’s hill the lower Trenton rocks are ex- 
posed near their junction with the Calciferous in a small quarry 
north of the highway between Glenville and Crane’s village at a 
point not far west of the Schenectady-Montgomery county line. 
The layers here are as follows in descending order (2G): 
G? At top very thin layer of granular highly fossiliferous rock 
adhering closely to next layer below. 
G6 Drab, fine grained fimestone with some 
crystals of calcite. Weathers ash-white. Contains 
fragments of a trilobite, probably Asaphus 
platycephalus Stokes, and crinoid segments 
on upper surface. 0757 264 
G> Two layers weathering ash-white, of drab 
color, tine “erained. Contain ‘corals: (S41ep te= 
lasma) and Gastropoda. 150 
G* Thin lumpy layers of dark color, containing 
fragments of a trilobite. oS 
G* Layer weathering very light gray, smooth 
fracture, very fine grain, drab. Contains Stic- 
topora and Ratinesquana waltermata 
(Con.) Hall and Clarke. 6" =A 
G? Light colored gray-weathering fimestone with 
smooth fracture. Contains’ “Ot hioceras, 
Stictopora and fragments of a trilobite. 1! 10/2 
G! Thin bedded, dark blue, fine grained lime- 
stone showing occasional crystals of calcite. Ir- 
regular lumpy structure with slicken-sided masses. 
Weathers light gray. Contains Sticto Dosa, 
corals and fragments of trilobite. i? 
This entire section probably belongs to the Black river horizon 
though the characteristic fossil, Columnaria alveolata, 
was not found. The limits of the exposure are small. 
