. 
240 The American Geologist. April, 1902. 
12. Shale and limestone with Derbya and crinoidal stems....... 2° @ 
13. Limestone, very impure, argillaceous, bluish on fresh sur- 
face, brown on weathered surface. Crinoid stems abundant; 
Bryozoa, Derbya crassa, Productus cora, P. fasciculatus, 
P. sp., Seminula subquadrata, Spirifer littoni, Straparollus 
similis, Phillipaia. stevensonif ... 0000 siaccccceceedesseseawe 3 ¢ 
14. Shale and impure limestone. Phillipsia abundant, but al- 
ways with. convex side down. ......6:.0.0.0sbesecs se scene re a 
15. Limestone, impure, more or less nodular, layers, three inches 
to twelve inches thick and separated by lamine of shale. 
This is the floor of the quarry and very rich in fossils, which 
for the most part, are beautifully perfect. The forms are, 
Zaphrentis spinulosa, Z cliffordana?, Agassizocrinus sp., 
Bryozoa, several species, Derbya crassa, Chonetes sp., Pro- 
ductus cora, P. fasciculatus, Seminula subquadratc, Spirifer 
littoni, Martinia contracta, Eumetria marcyi, Dielesma tur- 
gida, Bellerophon sublaevis, Straparollus similis, Holopea 
newtonensis?, Dentalium sp., Allorisma sp.,Orth ceras near 
O. annulato-costatum, Phillipsia stevensoni, fragment of fish 
SO PUIG Leia apa thie aid edd dal bs Wintec ets Sidon ole Sta ldls wuteleet eae 42 
16. Calcareous shale, dark brown, contains very elongated Pro- 
ductus cora, occasional P. fasciculatus, Spirifer and Or- 
thoceras ike that.in Nov 15;: -<c<.2s00% ive od oe ace oO 3 
17. Limestone, hard, dark blue, weathers rusty yellow, but is 
purer than No. 15. Fossils are abundant, but, for the most 
part, not recognizable; the same Producti, Spirifer and 
Seminmla OS AWOVES x s siaievsidacs,s uses Oe cos ok evens 3 
The remainder of the section lies below the quarry and the succes- 
sion was obtained on the slope leading from the quarry to the National 
road, 
18. Calcareous shale, not fully exposed; under cover it may prove 
to be limestone. Fossils are few and indistinct, only P. fas- 
’ 
ciculatus having been recognized .................-e0ee005 6 
19. Arenaceous limestone, weathering with rough surface, fos- 
siliferous, but forms very indistinct:.....s.........ssswees cue 2 
20. Wholly: Comoemled ist vison: cen sd abn bees Haas seme See 23" 
21, Limestone, not fully exposed; the decomposing outcrop is 
reddish, but the rock weathers light buff; fossiliferous, 
contains Productus cora, P. fasciculatus, Spirifer littoni and 
Rhynchonella sp. The bed is evidently thicker than the 
EXHOSUTE. 26... cdivbcalé cegd Pua da Magee cewha Cegh nk «cine ee rer. 
22. Not well exposed, but mostly bromn shale... ............+.- 2 
23. Limestone, imperfectly exposed, upper part, reddish, com- 
pact, somewhat arenaceous, weathering light blue, no fos- 
sils; lower part is very fossiliferous containing so many 
small fragments of crinoidal stems as to appear granular on 
weathered surface; numerous minute forms resembling 
