418 W. M. Fontaine—Primordial Strata of Virginia. 
southeast. The strata so far form the western base of the Blue 
idge. The succeeding rocks form a series of low hills, which 
for a space of 24 miles at this point lie between the mountain 
and the valley of South River, a branch of the Shenandoah. 
4.) W 
seen, kaolin shales and kaolin sandstone, principally the 
r 
(6.) The above beds, which are mostly sandy shales, and are 
rather thickly-bedded in layers of from one to several feet, are 
succeeded by a band of very thinly-laminated, firm, olive 
