2on 



Just south of tlie Woisburg station, in tlie bani^ of the creek to the west of 

 the railroiui, the ujiper layers of tlie Ordovician are expofed. From this ex- 

 posure a large and very satisfactory collection of fossils was obtained. A section 

 at this point is as follows (^ 1.34 A) : 



15 — A number of feet of barren 'limestones 



14 — Blue compact tine-grained limestone. No fossils. 



13 — Covered 



12 — Compact limestone. Rhynchotrcma capax 



11 — Thin-bedded limestone 



10 — Very compact, tine-grained limestone 



9 — Calcareous shale with Strophomena 



8 — Limestone. Fragments of Asaphus 



7— Shale 



6 — Limestone with Hebertella 



5 — Limestone same as 4 



4— Blue limestone with Rafinefquina edgewise (aa) . , . 



3 — Rajinesquina flatwise (a) 



2— Shale 



1 — Coarse compact limestone, no fossils 



Ft. 



Total section 12 



Level of creek below railroad culvert. 



In. 



7 

 4 

 9 



3 



2 

 10 



Continuing on down the creek from this point, the following layers are 



passed over (? 1.34 B): 



Ft. In. 



4— Limestone 8 



3 — Irregular lumpy shale 2 6 



2 — Limestone and shale with Rajinesquina and Heberlella 1 4 



1 — Very coarse-grained limestone. Rhynchotrcma (aa) 2 3 



Down stream from this point no measurements were made, owing to the efll'ect 

 of rainy weather upon the barometer, but the characteristic fossils of the success- 

 ive layers were noted. These are as follows from the last mentioned layer down- 

 ward (i^ 1.34 C): 



16 — Plcdamhonites sericea (aa). 

 15 — Strophovicna riu/nsa (aa). 

 14 — Barren shale. 

 13 — Strophomena. 

 12 — Strepte'asma (aa). 

 n — Hebertella (aa) . 

 10 - Strepfe!ai<ma. 

 9 — Leptirna rhombotdalis (aa). 



