66 Atlantic and Gulf Coastal Plains Soils. 



Lufkin clay. — The soil is a fine sand or silt loam, from 3 to 8 



inches deep, containing occasionally a few iron concretions. The 



subsoil is a stiff, impervious red or drab clay, becoming very 



plastic or mottled at a depth of 30 inches. At a depth of 3 to 5 



feet the clay is distinctly stratified. The surface is generally level 



and the drainage is poor. The natural growth is scrub pine and 



small oaks. Not adapted to ordinary farm crops, and small yields 



of corn and cotton are obtained. 



12 3 4 



Soil (10) r 5 38 37 20 



Subsoil (11) 3 24 30 43 



Acres. 



Lufkin, Tex 6,97G 



Nacogdoches, Tex 5, 120 



Ouachita, L,a 64 



Acres. 



Paris, Tex 61, 69G 



Woodville, Tex 4, 416 



PORTSMOUTH SERIES. 



This series consists of black to brown sands and loams, generally 

 rich in organic matter, occupying level, usually slightly depressed 

 areas in the uplands along the outer edge of the Coastal Plain. 

 The soils are undoubtedly the result of former sedimentary de- 

 posits modified by swamp conditions in which the drainage has 

 become partially reestablished. To the former swampy condition 

 is due the accumulation of organic matter^ particularly in the sur- 

 face soil, and, as a usual accompaniment of such conditions, the 

 notable lack of organic matter in the subsoil. The ^ame cause 

 has produced the mottled colors in the subsoil which are com- 

 monly associated with poor drainage and lack of suflicient aera- 

 tion, especially where such conditions continue for long periods. 

 The Portsmouth series forms an intermediate ciass of soils 

 between the Norfolk series of light-colored sands and loams on 

 the one hand and the present swamp areas on the other. The 

 soils of this series, M'hen drained, are adnnra])ly adapted to 

 corn and some of the truck crops, i)articularly to strawberries, 

 cabbage, and onions. They are not well adai)ted to wlieat. 



Portsmouth sand. — Black, brown, or gray loamy sand, about VI 

 inches deep, usually containing a large amount of organic matter. 

 The su})soil is a gray or mottled drab, white, and yellow sticky 

 sand of fine texture, underlain usually at from 24 to 48 inches by 



