IV. Neai' canal, west of the curve in the railroad shown in PI. 

 13, by old, decaying canal boat. 



1. Calcareous, shaly and sandy, thin-bedded layers 



at edge of canal, with Synirophia. 



2. Slight outcrops in pasture south of i, towards the 



railroad, sMith Asap/ms convexusf , Harrisia, et al. 



V. lyower part of large quarry south of railroad one-fourth 

 mile. See map, PI. 14, below the floor rock of quarry. 



1 . P'irm, mottled, grayish calcareous sandstone layers. 



2. Ivayer seen at the base (floor) and northern edge 



of quarry; about one foot thick, replete with 

 Gastropoda, with Asaphus canalis, et al. 



VI. Southern margin, escapement, of quarry.* 



1. Gray sandy layers, 6 feet in thickness. 



2. A layer with a few fossils. P. Imnterensis. E. 



multiseptaruis , et al. 



3. Typical Calciferous sandstone layers containing an 



abundance of Ribeiria. 



4. Same typical Calciferous sandstone as in 3. 



VII. The highest ground shown in the ma'p (PI. 14) is under- 

 laid by Calciferous sandstone. Along the southern 

 limit of the map there is, generally, a slight S. W. 

 dip, so that just to the west of the stone fence the 

 Calciferous passes under the quarries in the Trenton 

 limestone. In the S. E. portion of the map the dip 

 changes to E. N. E. , caused by the fault passing from 

 there N. N.W. to and beyond the E. end of the rail- 

 road quarry shown in PI. 13. East of fault line the 

 bedrock is mostly Utica shale, though a little Trenton 

 limestone is exposed in the very southeast corner of 

 the map. 



VIII. Quarries in Trenton limestone best seen just south of the 

 area shown in map. 



*Beds VI 2 and 3 are seen in the nearly vertical walls of the quarry. 

 E. ))iultiseptariiis, P. floiHdensis were collected from a projecting ledge of 

 W 2. This ledge is probably a continuation of the stratum exposed about 

 1000 feet N. E. of the quarry containing B. nmltiseptarius. 



The most fossiliferoiis bed of the se6tion is the i ft. 10 in. of VI 3, 

 well exposed on the western half of this escapement and also on the W side 

 of the quarry. The fossils obtained from this stratum are, in order of abund- 

 ance, Ribeiria, Ophileta, Asaphus. These fossils are often colored green, • 

 the color being due to the presence of copper. The limestone when weath- 

 ered crvmibles readily, making collecfting especially easy. — From notes of 

 J. Paclxcco, C. U. ^02. 



