Smithsonian Report, 1949.—Kellogg PLATE 1 
PROFILE OF A PODZOL SOIL IN MAINE UNDER THE EVERGREEN FOREST 
A heavy mat of partly decomposed organic matter from the forest lies over a nearly white, strongly leached 
horizon. Directly beneath this is a dark brown horizon containing colloidal material originating from 
the horizons above. In this region soil-forming processes do not extend deeply. The parent material— 
glacial drift—lies at about 20 inches. 
