PERFORATED DISCOIDAL STONES. 



101 



quart zite, 6 inches diameter, wliicb lias beeu used as a mortar, the cavi- 

 ties being roughened, witli their edges broken and scarred (the edge of 

 the stone is battered entirely around midway between the sides as 

 though used for a hammer) ; from McMiun county, Tennessee, one of 

 quartzite, about the same size as last, with a slight pit in the center of 

 each cavity, the edges of the concavity being considerably chipped, and 

 the edge of the implement very smooth ; from Polk county, Tennessee, 

 one of quartzite, 3i inches in diameter, with the edge polished except in 





'J6.— Dibfoiilal stone, with perforatini 



one spot, where it shows marks of use as a hammer or pestle — it has been 

 used also as a mortar, the edges of the concavity being much chipped 

 and broken ; one each from Craighead county, Arkansas, of novacu 

 lite; Randoljjh county, IlHnois, of granite; Cherokee county, Georgia, 

 of quartz; and Obion county, Tennessee, of sandstone. In the four 

 last mentioned the entire surface ---^^ ~- -^ 



is quite smooth or even highly pol- 

 ished. 



b. With a small perforation at the 

 center. The type is shown in figures 

 90 (of sandstone, from a grave in ii 

 Union county, Illinois), and 'M (of p 

 granite, from Virginia). There is \. 

 another specimen, of sandstone, from 

 Red River county, Texas. 



c. With a secondary depression in 

 each cavity. Figure 98 (yellow 

 quartz, highly polished, from Fulton 

 county, Georgia) is typical. There 

 is also one of quartzite, with a secondary depression in one side only, 

 from Roane county, Tennessee, which may be supposed, from this and 

 other imijerfections, to be unfinished. 



2. Edges of concavity rubbed off blunt. These are grouped simply 

 by form, as the specimens from Kanawha valley. West Virginia, and 

 northeastern Kentucky are nearly all roughly finished, quite different 



Fig. 97 Discoidal stone, with perforation. 



