prosser.j GRAVEL PLACE, MONROE COUNTY, PA. 5 
Along- the line of the Delaware, Lackawanna and Western Bail- 
road, north of East Stroudsburg, there has been, considerable fold- 
ing of the rocks, and the Upper Helderberg (Corniferous limestone) 
appears again as shown on Prof. White's geological map of Monroe 
Comity. Especially is this discernible in a small cut a little above the 
flag crossing on the western side of the track, about three fourths of a 
mile north of the station and in a field on the eastern side of the rail- 
road a little farther north. 
GRAVEL PLACE, MONROE COUNTY, PA.— 1475 C 2. 
At a point 2.7 miles north of the Stroudsburg station of the New 
York, Susquehanna and Western Railroad is its junction with the 
Delaware, Lackawanna and Western Railroad. A short distance 
farther north, just beyond the point where the Delaware, Lackawanna 
and Western crosses the highway, is an exposure of rather coarse 
arenaceous shales on the northeast side of the railroad. Here fossils 
are quite abundant, especially Vitulina pustulosa Hall. The dip of the 
shales near the top of the bluff is between 22° and 23°, about 20° west 
of north. The rocks cleave strongly between 20° and 30° east of south, 
and the position of the fossils shows that it is cleavage passing across 
the line of bedding. 
Fauna of No. 1475 C 2. 
Vitulina pustulosa Hall (aa) 
Over fifty specimens were collected, some of which are very perfect, show- 
ing the pustulose character very nicely. 
Amhoccelia umbonata (Con.) Hall (c) 
Phacops rana (Green) Hall (r) 
Spirifera mucronata (Con.) Billings (r) 
(?) Nyassa arguta Hall (rr) 
Broken and imperfect specimen. 
Spirifera granulifera Hall (rr) 
Chonetes defiecta Hall , (r) 
Modiomorpha subalata (Con.) Hall (rr) 
Pterinea flabellata (Con. ) Hall (rr) 
Leiorhynchus multicosta Hall (rr) 
Modiomorpha concentrica (Con.) Hall ? (rr) 
Specimen broken and crushed so it is not possible to be absolutely sure of 
specific identity. 
Pleurotomaria sp (rr) 
Crinoid (calyx) 
The lithologic character of the rocks is that of the moderately coarse 
arenaceous Hamilton shales of central New York, and the fauna is 
undoubtedly Hamilton. 
No. 1475 O 3. — The hills on the northeast side of the railroad are quite 
steep, and above Gravel Place, at a point opposite that at which the 
railroad crosses the highway for the third time, is an exposure of arena- 
ceous shales, the lithologic character of which is about the same as that 
of C2, and fossils are common; Palwoneilo constricta (Con.) Hall occurs, 
and Spirifera mucronata is comparatively abundant. 
