NOBTH-CAKOLINA GEOLOGICAL SURVEY. 33 



Lime, 0.049 0.040 



Magnesia, 0.005 0.005 



Potash, 0.040 trace, % 



Soda, , 0.030 trace, 



Water, 4.000 4.000 



98.845 99.845 



This soil was dried before the quantity was weighed for 

 analysis. When exposed to about 300 degrees of Fah., it lost 

 fifteen per cent, of water. 



This soil has not been cultivated, and though it looks rich, 

 still I am inclined to regard it as a poorer soil than No. 1. 

 It contains more sand, is rather coarser, and less alumina, 

 iron and vegetable matter. The alkaline earths, as lime and 

 magnesia, are much less. The same may be said of the alka- 

 lies, potash and soda. The depth of this soil is from eighteen 

 to twenty-four inches, resting on a hard and rather impervious 

 bottom. Its natural growth is also different ; as it consists of 

 reeds standing very thick, and small sickly pine saplings, red 

 and white bay bushes, gallberry, etc. 



This growth, it is evident, might be due to the impervious 

 bottom, or its low temperature ; but it is also in part due to 

 the absence of the most important elements of fertility. 

 There is no doubt, however, but a low temperature, which is 

 due to the presence of water, is competent to produce an ap- 

 parent sterility, low bushes of peculiar kinds, as bay, gall- 

 berry, alder and willow. 



No. 3. The color of this soil is a dark ash or gray. It has 

 become dry in the box in which it was sent, while No. 2 has 

 remained wet. It is pulverulent and light, though somewhat 

 lumpy. The vegetable matter exists evidently in a large pro- 

 portion, yet a close observer would perceive that it is less 

 than in No. 2. 



On submitting it to analysis, I found its composition as fol- 

 lows: 



Silei 81.600 



Vegetable matter, 12.800 



Peroxide of iron and alumina, 4.100 



Carb. of lime, 0.020 



4 



