296 Clara Gould Mark 



of the limestone gives it a very irregular surface when weathered. 

 The interval from the limestone to Coal No. 5 is 85 feet and is 

 covered with the exception of two or three feet immediately above 

 the limestone and ore, where the dark gray fossiliferous shale is 

 exposed. This coal mine is not worked at present, but one- 

 quarter to one-third of a mile farther west on the land of Mr. 

 Hartness the same seam is worked in two mines. The thickness 

 of the coal at these mines is given by the workmen as 4 feet and 

 8 inches, and the coal is of excellent quality. The workmen at 

 these mines state that there is another vein of coal not far below 

 No. 5, but not of workable thickness. The roof of the coal con- 

 sists of soft sandy shale which in some parts of the mines has 

 caved badly, causing depressions of considerable size on the hill 

 above the entries. In one of these about 15 feet of the shale is 

 shown in place above the coal. 



Just back of the old toll house on the Zanesville and Maysville 

 pike and not far from the exposure of the Mercer limestone where 

 measured, a second limestone 8 to 10 inches thick was formerly 

 exposed about 20 feet below the Mercer, but this lower limestone 

 is now covered. 



The following species of fossils were collected from the Mercer 

 limestone below the Allen coal entry and on the adjoining land of 

 Mr. Wm. Axline, where the limestone is shown in several places : 



Rhombopora lepidodendroides Meek 



Orthothetes crassus (Meek and Hayden) 

 Chonetes mesolohus Norwood and Pratten 

 Productus seniireticulatus (Martin) 

 Produdus cor a d'Orbigny 

 Productus longispinus Sowerby 

 Productus nebraskensis Owen 

 Spirifer caniaratus Morton 

 Spirifer rockymontanus Marcou 

 Reticularia perplexa (McChesney) 

 Seminula argentea (Shepard) 



Dentalium sublaeve Hall 



