ILLUSTKATIONS 



Plate Facing Page 



XIV. Fig. 1. View showing large cypress trees in Lake Drummond, Dismal 



Swamp 190 



Fig. 2. Cypress trees and knees of Dismal Swamp 1 90 



XV. Fig. 1. View of sand dunes, Cape Henry 209 



Fig. 2. View of sand dunes, Cape Henry 209 



XVI. Fig. 1. View of sand dunes, Cape Henry 209 



Fig. 2. View of sand dunes, Cape Henry 209 



XVII. Fig. 1. General view of Turner's clay pit, Ettricks, near Petersburg. . . 213 

 Fig. 2. View of sandstone blocks in old quarry at Coles Landing, 



Aquia Creek 213 



XVIII. General view of Norfolk Portland Cement Corporation's plant, oppo- 

 site U. S. Navy Yard, near Norfolk. Storage bin adjoining wharf 

 shown on left; coal house on right; main portion of plant in center. 



(Courtesy of Wm. H. Stone, Manufacturers Record.) 252 



XIX. Fig. 1. View of Miocene (Yorktown) marl beds at Yorktown. The 

 marl is to be used by the Jamestown Portland Cc-ment Cor- 

 poration for the manufacture of Portland cement 255 



Fig. 2. View of Miocene ( Yorktown ) marl beds along north side of 

 James River, south of Grove Station. The marl is to be used 

 by the Colonial Portland Cement Corporation for the manu- 

 facture of Portland cement 255 



Figure Page 



1. Diagrammatic representation of the east bank of Dutch Gap 



Canal 77 



