".] 



TYPICAL SOILS 



6t 



of " sand," nearly all of the coarser kinds, while the clay 

 only amounted to 47 per cent, most of which was really 

 ferric oxide. Calcium carbonate is also entirely absent, 

 owing to which the soil accumulates more humus than 

 would be expected from its great aeration, and in the 



hollows where water lies it often becomes peaty. Such 

 soils are rarely in cultivation, but are left as wastes, 

 carrying a natural vegetation of heather and pine. 



Because, however, of their lightness and warmth, 

 they are sometimes valuable for market gardening on a 

 small scale, if they are so situated that large supplies of 



