76 TRANSACTIONS OF THE [pxc. 16, 
6. Unfossiliferous, rather sandy limestone, weather- 
ing yellowish-red,in layers 1 to 5 inches thick; with 
lighter gray, fossiliferous encrinal, crystalline lenticles, 
and black compact nodular inasses which show especially 
on the weathered surface. a6. 3”” 
Crinoid fragments a a a. Zygospira recurvirostra c. 
Orthis testudinaria a a. Trematis terminalis c. 
equivalvis a. n. sp.* 
biforata a. Schizocrania filosa. 
Asaphus platycephalus a. Prasopora lycoperdon. 
Rafinesquina deltoidea a. Orthoceras. 
Calymene senaria c. 
It is impossible to follow the eastern shore further in con- 
tinuation of this section,as the banks become too steep ; but 
crossing to the western bank and descending by the stairs lead- 
ing down from the hotel the following section is traced. 
Section D: 1. At water level below the foot of the ho- 
tel stairs, layers, 2 to 8 inches thick. Dip3°S. Soft, 
black, shaly ; slightly crystalline in portions. Fossils 
chiefly fragmentary. of 
Asaphus platycephalus large, a. Orthoceras. 
Crinoid fragments a. Orthis testudinaria. 
Calymene senaria. Bellerophon bilobatus. 
Rafinesquina alternata ce. Trematis terminalis. 
2. Compact, nearly barren layers, with only a few 
specimens of Orthoceras. Ca Ud 
3. Fine grained heavy black limestone, with conchoi- 
dal fracture, and few more or less perfect fossils. 1h & GP" 
Crinoidal columns. Rafinesquina alternata. 
Trinucleus concentricus. Orthis testudinaria. 
Calymene senaria. Foraminifera. 
Bellerophon bilobatus. Nucula levata r. 
4. At landing step of stairs leading down from the 
hotel. Dip 3°. Heavy bed of very compact nearly 
black limestone with irregular or conchoidal fracture, 
in layers 3 to 10 inches thick, irregular and nodular on 
the surfaces. Frequent well preserved fossils. rs! “Gr 
Plectambonites sericea ce. Gyroceras. 
Rafinesquina alternata and some of its Murchisonia gracilis. 
peculiar forms with fine strix. Tellinomya dubia. 
Asaphus platycephalus large ec. Nucula levata. 
Calymene senaria ¢. Lingula large sp. 
Orthis testudinaria c. Bellerophon bilobatus. 
subxequata. Crinoidal columns. 
xequivalvis. 
—__— 
*Description of this species is deferred until it can be included with other new spe- 
ciesin the monograph on the Lake Champlain Trenton referred to at the beginning of 
this paper. The specific name 7. Trentonensis will be adopted for it. 
