1895. ] NEW YORK ACADEMY OF SCIENCES. 
5. Shaly layers, with no distinguishable fossils ; not 
constant. 
6. Dark gray, fine grained limestone in layers 8 to 
10 inches thick, with shaly partings, readily cleavable 
in horizontal layers. The various thin layers weather 
at different rates. Well preserved fossils. 
Asaphus platycephalus large. Calymene senaria. 
Trinucleus concentricus Datmanella testudinaria. 
Ceraurus pleurexanthemus. Lingula—fragments. 
7. Heavy, dark colored, nearly barren limestone. 
The broad seam seen in Sherman Fall. 
8. Finely crystalline, dark gray, very pure limestone 
splitting readily into regular layers. Contains many 
comminuted and water worn fragments. 
Orthis (Dalmanella) testudinaria. Monticulipora sp. undet. 
Bucania punctifrons. Hyolithes. 
Rafinesquina alternata. Ptilodictya. 
Lingula riciniformis. Calymene senaria. 
Trinucleus concentricus. 
9. Layers forming the top of Sherman Fall. Gray, 
pure, somewhat crystalline limestone densely packed 
with Orthis (Dalmanella) testudinaria; the lenticles 
separated by thin, shaly partings. 
Prasopora lycoperdon large celled ec. Rafinesquina alternata. 
small celled e. Calymene senaria r. 
Plectambonites sericea c. Asaphus platycephalus r. 
Zygospira recurvirostra. Lingula riciniformis. 
Nucula levata. 
10. Impure, soft black limestone, with light colored 
gray crystalline fossiliferous lenticles and thin crinoidal 
shaly partings. 
Crinoid stems a a. Prasopora lycoperdon. 
Zygospira recurvirostra a a. Monticuipora sp. undet. 
Plectambonites sericea a. Rafinesquina alternata. 
Orthis (Dalmanella) testudinaria a. Calymene senaria. 
Rafinesquina deltoidea a. Trematis terminalis. 
Asaphus platycephalus c. Endoceras. 
Orthoceras large c. Isachilina small sp. 
Orthis ( Platystrophia) biforata. Bellerophon bilobatus. 
( Plectorthis) xquivalvis Ceraurus pleurexanthemus. 
11. First constant heavy “ blue black.” layer, the bot- 
tom following the level of the path above the falls. 
Very pure, hard and barren except for handsome 
specimens of :— 
Calymene senaria. Asaphus platycephalus. 
17 
90’ 6// 
26/ 6// 
34/ 6// 
37! 
4]/ 6// 
46/ 6! 
49! Qi! 
