Smithsonian Report, 1917. — Hitclncock. 



Plate 2. 



I. Northeastern Part of Lanai. Showing the Effect of Wind Erosion. 



The columns are hard lava, from wliich the surrounding material has been blo-^^ii away. 



2. Northwest Part of Molokai; a Rolling Plain Denuded by the Strong 



Trade Wind. 



The liillocks are held by Bermuda grass. 



