213 



Ft. In. 



51 — Blue fossiliferous limestone shale and arenaceous layers 6 



50 — Fine shale with layers of limestone, Rhynchotrema, Hebertdla, 



MonticuliTpora, Calymtne, Rofinesquina 10 



49 — Same as 50. Strophomena, Streplela&ma, Plectumbontte.-', Dalmanella, 



Pla(yi<lrophia laticosta, Amhonychia 8 



48— Probably shale and thin layers of limestone; covered by (alus ... 22 

 47 — Heavy layers of limestone seen in the west side of the south cut, at 



the top. 

 46 — Heavy layers of limestone seen in the cast side of the south cut, at 

 the top. 



The lowest layers in the big cut (north cut) are 24 feet above 

 the top of No. 45 if the foot of the big cut be taken as 210 feet 

 above the river. Part of the layers of No. 46 would therefore 

 be repeated in 45. Allowance is made for this fact. Nos. 46 



and 47 together 24 



45 — Shale. The top of No. 45 is at the culvert just north of the south 



cut 10 



44 — Several layers of limestone wilh Cyclomeiia, Rafinesijuina, Caiyvune, 



etc 1 2 



43— Shaly limestone. Cydonema ■ 2 8 



42 — Limestone. Ambonychia, Cydonema, Rafinesquina, Monticulipora, 



Crinoids 2 



41 — Limestone and shale. Ambonychia 5 



40— Compact close-grained limestone. Rafmefquina 3 



39 — Limestone and shale. Zyfjospira, Ambonychia 2 4 



38 — Limestone. Rafinesquina edgewise (aaa) 4 



37 — Argillaceous compact limestone. Rajinesquina 6 9 



36 — Limestone. Bryozoa 6 



35 — Shaly limestone 5 8 



34 — Limestone 8 



33 — Shaly limestone 2 8 



32 — Limestone. Rafinesquina, Cabjmene, IlchcrteUa (?), Gastropoda, 



Bryozoa 8 



3) — Shale, with occasional 2-inch to 3-inch layers of limestone 10 8 



30 — Limestone. Rafinesquina edgewise (aaa) 3 



29 — Shaly_ limestone. Rafinesquina ( aa ), Modiolopsis (aa), Zygo- 



spira (aa) 6 9 



28-Similar to 26 ' 4 



27 — Shaiy limestone 1 4 



26 — Blue fine-grained limestone. Zygospiru (aaa) 3 



25 — Shaly limestone. Rafinesquina, etc 13 



24 — Very compact fine-grained limestone ; no fossils 6 



23 — Shale and limestone, with excellently preserved specimens of Ra- 

 finesquina (aa) 4 2 



