Ill 



SOILS 



Classification of Soils (after Schiibler and Wrightson). 



CLASSES. 



I. Clay or Argillaceous Soils. 

 (Over 50 per cent, of clay. ) 



II. Loamy Soils. 



(30 to 50 per cent, of clay. 



III. Sandy Loams. 



(20 to 30 per cent, of clay. ) 



IV. Loamy Sands. 



(10 to 20 per cent, of clay.) 



V. Sandy Soils. 

 " (Over 70 per cent, of sand. 



VI. Marly Soils. 



(5 to 20 per cent, of lime.) 



VII. Calcareous Soils. 



(More than 20 per cent, of 

 lime.) 



VIII. Vegetable Soils. 



(More than 5 per cent, of 

 humus. ) 



