THE RED HILL REGION. 11 



Q 



The following analyses of typical soils in this region were made by 

 Dr. Eugene A. Smith, of Tuscaloosa, Alabama, for the 10th United States 

 Census : 



1. 2. 



Insoluble matter 88.960 89.340 



Soluble silica . . • 3.055 2.847 



Potash 115 .138 



Soda 050 ^ .063 



Lime 062 .077 



^lagnesia 028 .061 



Br. oxide of Manganese 098 .096 



Peroxide of Iron 1.250 1.559 



Alumina 4.000 3.686 



Phosphoric acid 075 .067 



Sulphuric acid 047 .038 



Water and organic matter 2.621 1.668 



Total 100.361 99.650 



Ilygoseopic moisture absorbed at 80° Fah. . . 1.982 1.444 



These samples were taken uniformly to the depth of twelve inches on 

 the table land in Amelia township, Orangeburg county, about three miles 

 below the junction of the Wateree and Congaree rivers, from the place 

 of J. Peterkin, Esq. The three hundred and seventy-five acres in cotton 

 on this place made, in 1879, two hundred and fifty bales of cotton. No. 

 1 is from woodlands never cleared ; the growth, large red oak and hick- 

 ory, with a sprinkling of very large short leaf pine. No. 2 is from a field 

 that has been planted for more than one hundred years ; having on it a 

 crop of about twelve hundred pounds of seed cotton to the acre when the 

 sample was taken. The field had received only cotton seed and com- 

 mercial fertilizers as manures for a number of years. Prof. Toumey, in 

 his survey of South Carolina, published in 1848, gives the following 

 analvses of these soils ; 



No. 1. No. 2. No. 3. 



Organic matter. 5.60 7.00 4.40 



Silica 66.90 71.00 80.30 



Alumina 9.60 8.50 6.60 



Oxide of Iron 6.00 4.00 3.70 



Lime 2.00 1.56 0.90 



Magnesia 50 1.00 trace. 



Potash and soda trace. .50 . . . 



Water and loss 9.40 6.44 4.10 



8 100.00 100.00 100.00 



