7 
1G. 
Devonian age, vix: 
Lingula (like L.ligea), Hall. 
Orthis impressa, Hall. 
Productus Shumardianus, Hall. 
Produetus (like P.lachrymosa) 
Strophodonta sp.?. 
Spirifera sp.?. 
Nucleospira concinna, Hall. 
Cyrtina Hamiitonensis, Hall. 
Ambocoelia (like young of A.umbonata) 
Rhynehone 11a duplioata. Hall. 
Rhynehone 1la sinuata, Hall. 
Athyris ? sp.?. 
Pentamerus Lotus, Walcott, (var) 
Modiomorpha ? sp.?. 
Euomphaius sp.?. 
Platyostoma lineata ?, Conrad. 
Orthoceras sp:?. 
Orthoceras sp.?. (slender species) 
Leperditia sp.?. 
Calcareous sandstone overlaid by arenaceous limestone 
and above that-bluish-gray thin bedded limestone. 17o it 
11. Hard compact yellowish sandstone in thin layers. 
25 
Bluish-black limestone in thin layers overlaid by snaly 
limestone with intercalated beds of bluish-black 
limestone. The latter carry numerous fossils very 
much like those of No.9. . ^ u 
At 60 feet from the base buff shaiy iimesuone piedomi- 
nates and a more evenly grained smoother harder 
o • •, > ^ r : * ^ e c-y y • * <- •, j \ v' X y * ^ ..4 JLmS *1 Am *4 
shaiy limestones. Fossils few in number and bad¬ 
ly preserved. . 
At 250 feet from the base numerous fragments of crmoids 
crinoidal colums begin to appear and . At rypa r eticu¬ 
laris was seen for the last time. _ . 
At 275 feet Spirifera lineata and .Spiriferina crisoata 
were observed. 
The limestone in layers gradually replace the shaiy 
limestone until the iatter disappears from the sec¬ 
tion. 
It 
