The Bulletin 

 average mechanical analysis. 



25 



Surface soiL 

 Subsoil 



Fine 

 gravel, 

 per cent 



1.4 

 .4 



Coarse 



sand, 



per cent 



2.4 

 1.3 



Medium 



sand, 

 per cent 



1.4 

 .8 



Fine 



sand, 



per cent 



2.0 

 1.3 



Very fine 



sand, 

 per cent 



2.2 

 .5 



Silt, 

 per cent 



78.9 

 69.8 



Clay, 

 per cent 



11.1 



25.6 



ALAMANCE SLATE LOAM. 



The fine material of the surface soil of this type consists of a gray to 

 nearly white silt loam, ranging in depth from 6 to 8 inches. It is esti- 

 mated that from 25 to 50 per cent of bluish to gray slate fragments, 

 usually angular and oblong, and varying in length from one-half an 

 inch to several inches, are scattered throughout the soil. Numerous 

 outcrops of slate rock are encountered, and these obstruct plowing. 

 Sometimes between 8 and 15 inches a yellow silty clay is encountered, 

 but frequently the rotten slate or solid bed slate comes within 8 inches 

 of the surface, and is always found at a depth not greater than 15 or 

 20 inches. The slaty fragments are a nuisance and interfere with culti- 

 vation. Some few spots where not too slaty, are devoted to the growing 

 of corn, wheat, oats and cotton. This is a small and unimportant type, 

 and it should be used for forestry purposes. 



GEOEGEVILLE SERIES. 



The soils of the Georgeville Series, like the Alamance, are derived 

 from the "slates" of the Carolina slate belt. It is believed that the 

 rocks of this group giving rise to the Georgeville series are higher in 

 content of iron-bearing minerals than those giving rise to the Alamance. 

 The topography varies from undulating to rolling or broken along the 

 stream courses. The natural surface drainage is good, and even exces- 

 sive on the more rolling areas. The Georgeville soils are somewhat 

 stronger agricultural soils than the corresponding members of the Ala- 

 mance Series. The Georgeville Soils occui- in close association with the 

 Alamance soils and are well developed in Union, Stanly, Montgomery, 

 Eandolph, Cabarrus, Anson, Richmond, Granville, and places in Moore 

 and Davidson, and Chatham and Rowan counties. 



The Georgeville Series is represented thus far in the areas surveyed, 

 by two types; the Georgeville silt loam and Georgeville silty clay loam. 



GEORGEVILLE SILT LOAM. 



The surface soil of the Georgeville silt loam consists of gray, pale red 

 or red silt loam, which usually passes into a yellowish-red or red silt 

 loam at about 3 to 6 inches. The subsoil of the typically developed 

 areas beginning at about 5 to 12 inches to a dull red, bright red or pink- 

 ish-red brittle silty clay, extending to a depth of 3 feet or more. The 

 surface soil has a smooth, mellow feel, and works up to a good tilth. 

 Frequently on the steeper slopes, the surface soil has been washed off, 

 leaving exposed the red silty clay. This type also includes many spots 



