B. GEOLOGICAL INDEX. G 5 ..243 



Page. 



Transition beds 1X-X described, 58 



Valleys once deeper than now, see Buried, 28 



»• tilled with drift, 27, 28 



Valley of erosion, 17 



Valley beds slope at different rates, 9 



Valley of the Delaware a gorge, 8 



" " " Susquehanna fiat and wide, 8 



Valleys deeply cut, with steep sides, 7, 8 



"Wad, binoxide of manganese, 6, 93 



Watersheds described, 19 



Wilderness of Lebanon, 33, 167 



" of Clinton, 35, 175 



Whittleseya in lowest coal, 52 



Wilmot anticlinal, 41,112 



XIII, see Coal. XI, see Mauch Chunk. IX, see Catskill. 



XII, see Pottsville. X, see Pocono. VIII, see Chemung. 



