1. MAKIAxNNA KED LANDS. I95 



land when fresh was said to yield about 1,500 pounds of seed cot- 

 ton per acre. (The percentages given do not represent the total of 

 each constituent, but the amounts soluble in hydrochlOiic acid.) 



Water and urganic malter 4-053 per cent 



Potash (K2O .072 •• 



Soda (Na20) .019 " 



Lime (CaO) .266 •• 



Aiagnesia (MgO; .105 " 



Phosphoric acid radicle (P2O5) .222 " 



Sulphuric acid radicle (SO3) .033 " 



Brown oxide of^manganese (Mn304) .077 "" 



Peroxide of iron (te203) 1.456 " 



Alumina (AI2O3) 6.885 ' - 



Soluble silica --_--_ 3.250 '" 



Insoluble matter 84.240 " 



This is one of the richest soils in Florida. As compared with 

 the three other northern Florida soils analyzed in the same report, 

 il has the most organic matter,. lime, magnesia, alumina and soluble 

 silica, and the least insoluble matter, and is next to the highest in 

 potash and iron. It is somewhat deficient in potash as compared with 

 soils of regions that have colder winters and drier summers, how- 

 ever. 



Topography and Hydrography — The topography is undulating 

 to moderately hilly, and diversified in the rocky places by a few sinks, 

 caves, low cliffs, etc. Streams are fairly common, but some of 

 the drainage is subterranean. The Chipola River and one or two of 

 il- tributaries run underground for short distances, forming natural 

 bridges. Some of the creeks have sufficient fall to be utilized for 

 Vv-ater-power. There are cjuite a number of small springs, issuing 

 from beneath limestone cliffs, and a few large ones, the best known 

 of which is the Chipola or Long Moss Spring, at the head of Spring 

 Creek, about six miles E. N. E. of Marianna. In dry weather the 

 water in most of the streams is clear and bluish, on account of the 

 limestone dissolved in it. The ground-water in many places lies so 

 deep that force-pumps are required to raise it to the surface for do- 

 mestic use. 



Vegetation Types — The most characteristic vegetation types of 

 this region are those of the rock outcrops and of the residual red 

 clay, where deciduous trees predominate, and form rather dense 

 forests. The streams are bordered by swamps whose width is ap- 

 proximately proportional to the volume of water. On the sandy up- 

 lands there is considerable long-leaf pine, black-jack oak, and other 



