OUTLINE OF CHAPTER ONE 



THE SOIL 



Uses of Soil: 



Root-hold and home for plant 

 Storehouse for water, air, heat, and plant food 

 Soil Makers: 

 Heat and cold 

 Atmosphere 

 Water : 



Vapor, rain, dew, frost, snow, and ice 

 Living forms: 



Bacteria, fungi, mosses, higher plants 

 Earthworms, ants, higher animals 

 Classes of Soil: 



Sedentary, or in place 

 Transported, or carried: 

 By wind 

 By water 



Alluvial, by streams ; drift, by glaciers 

 Farm Soils: 

 Sandy 

 Clay 

 Loam 

 Limestone 

 Soil Moisture : 

 Uses of water: 



Supplies plant food 

 Dissolves and carries plant food 

 Sources of loss : 



Percolation, or passing through soil spaces 



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