26 PENNSYLVANIA AND NEW YORK DEVONIAN. [mtoufto. 
Tropidoleptus carinatus (Con. ) Hall. (rr) 
Pboladella radiata (Con.) Hall. . - * (rr) 
Microdon sp (rr) 
Surface markings, so far as preserved, near M. gregarius Hall; but the 
proportions of the shell are nearer M. bellistriatus (Con.) Hall. 
( ?) Leptodesma sp (rr) 
Crinoid, stem, calyx, and arms, but poorly preserved (rr ) 
No. 1476 G3. — Lower falls in Saw Oreek over sandstones. This was 
called the base "of the Genesee by Prof. White. In places it is quite 
calcareous and contains numerous fossils, Orthis vanuxemi Hall and 
others. 
Fauna of No. 1476 C3. 
Orthis vanuxemi Hall (c) 
Phacops rana (Green) Hall (rr) 
Spirifera mucronata (Con.) Bill (r) 
Spirifera fimbriata (Con. ) Hall (rr) 
Strophodonta inequistriata (Con.) Hall (a) 
Strophodonta perplana (Con. ) Hall (?) (rr) 
Chonetes coronata (Con.) Hall (?) (rr) 
Athyris spiriferoides (Eaton) Hall (rr) 
Prothyris lanceolata Hall (rr) 
Bellerophon leda Hall (?) (rr) 
Small specimen, but with the markings of this species. 
( ?) Stictopora sp (rr) 
Prof. White presents a section of these falls under the heading of 
the " Middle Bushkill Falls section," 1 and gives 50 feet of Genesee 
slate, then 15 feet of dark, hard sandstone, which forms the falls and 
which is stated to be "the lowermost portion of the Genesee." 
No. 1476 C4. — Just under the falls is a stratum of rock which is 
largely composed of corals and Syringopora, and which reminds one 
somewhat of the crinoidal limestone of the New York Hamilton. The 
stratum comes up to the base of the sandstone above, and then stops, 
being exposed only on the eastern bank below the falls. This layer 
forms No. 3 of Prof. White's section, 1 and he states that it "marks the 
dividing line between the Genesee and the Hamilton proper; The whole 
30 feet is one mass of corals, penetrating in every direction the dark 
bluish matrix. Many of the corals have been dissolved and leave the 
surface of the inclosing rock honeycombed and pitted in every manner 
conceivable. The species are very numerous and the individuals sim- 
ply countless. This stratum doubtless marks the horizon of the Tully 
limestone of New York." 
In the chapter on the "Description of the geological formations," 
under the heading of the "Tully limestone horizon," this locality is 
mentioned and the statement made that "probably the best exposure 
is at the falls of Middle Bushkill, li miles above its junction with the 
Big Bushkill. Here it is a perfect mass of Morals and shells for about 
30 feet, a great number of species and genera being represented, among 
' G 6 , p. 213. 
