SOIL 21 



Classes. Sub-Classes. 



VII. Calcareous soils. 1. Clayey calcareous soil. 



(More than 20 per cent. 2. Loamy calcareous soil, 

 of lime.) 3. Sandy loam calcareous soil. 



4. Loamy sand calcareous 



soil. 



5. Vegetable calcareous soil. 



6. Pure calcareous soil (with- 



out clay or sand). 



VIII. Vegetable soils. 1. Clayey humus. 



(More than 5 per cent, of 2. Loamy humus, 

 humus.) 3. Sandy humus. 



4. Bog or peat. 



Each of the first twenty-one sub-classes are 

 again sub-divided into three groups according 

 to amount of humus in the soil, viz. : 



1. Poor. If they contain less than J per 

 cent, of humus. 



2. Intermediate. If they contain from J to 

 1J per cent, of humus. 



3. Rich. If they contain from 1 to 5 per 

 cent, of humus. 



Rainfall. From 60 to 80 inches per year 

 evenly distributed is what suits the coconut 

 tree best, though it will thrive well on less 

 but not below 50 if the soil is free and the 

 roots can travel easily in search of water ; more 

 than 100 inches of rain is said to produce more 

 leaf and less fruit. 



