448 Prosser — Stratigra/pMc Position of Hillsboro Sandstone. 



On the A. L. Rhoads' farm to the west of the north and south 

 road is a ledge of dark gray, friable sandstone composed of grains 

 of quartz sand, with a thickness of li feet. 



The sandstone is also shown on the northern side of the Mar- 

 shall-Sinking Spring Pike, northwest of the house of Mr. D. E. 

 Stewart, which is the one formerly occupied by Mr. John Bell. 



Section on Pike northeast of the D. E. Stewart house. 



Total 

 Thickness Thickness 



No. Ft. In, Ft. In. 



3. Hillsboro sajidstone. — A ledge b}' the 



side of the highway, which is more 



or less broken down, of light to dark 



colored, friable sandstone, composed 



of grains of quartz sand. Mr. Stewart 



stated that this sandstone caps most 



of the knolls in this locality 2 10 15 10 



2. Covered interval 10 13 



1. The so-called "marl," drab limestone 



which crumbles on weathering 3 3 



It is not certain that all of these outcrops of sandstone near 

 Turkey occur at the same stratigrapliic position ; but lack of 

 time prevented the writer from carefully investigating this point. 

 It is not improbable that they belong in two horizons similar 

 to the outcrops already described on Quaker Hill. 



Ohio State University, 

 Columbus, Ohio. 



