NORTH-CAROLINA GEOLOGICAL SURVEY. 49 



This soil has evidently been worn by long cultivation, still 

 it has sufficient matter to sustain moderate crops ; but it has 

 reached that stage which requires additional applications of 

 manure. , 



All the most important elements, as phosphoric acid, sul- 

 phuric acid, lime, magnesia and potash, are considerably less 

 than the standard soils contain ; and as they maintain about 

 the usual proportions to each other, it is probable that they 

 have been reduced simultaneously by cultivation. 



No. 2. Color, a light drab, resembles clay, but contains 

 coarse particles of sand, and hence is very gritty. This 

 variety of soil contains greater excess of sand, and is defici- 

 ent in organic matter, etc. One hundred grains gave me 



Silex, 93.000 



Peroxide of iron and alumina, 2.000 



Organic matter, 1.300 



Lime, 0.001 



Magnesia, "0.010 



Water, 3.000 



Potash, trace, 



Soda, trace, 



Sulphuric acid, trace, 



99.311 



This evidently ranks among the poorest of soils. It ap- 

 pears quite similar to much of the poor gallberry lands of the 

 eastern part of the State. 



A larger proportion of alumina and iron could have been 

 obtained by fusion with baryta or soda, but the exhaustion by 

 boiling with hydrochloric acid, I deemed sufficient for my 

 purpose, or the objects to be obtained by analysis. This kind 

 of soil no doubt might be put into a condition for raising 

 wheat by thorough drainage, and a large application of 

 manures. 



The best application to a soil, the composition of which re- 

 sembles the foregoing, is a compost of marl with organic 

 matters derived from the stable ; or, the leaves of a forest. 

 In materials of this description a supply of organic matters 

 is obtained in combination with the phosphates of lime and 

 5 



