14 



The Afinosp/terr of the Soil 



% Carbon diDxidc 

 ^ o » 



°„ Oxvgeii 

 <N ■ o CO 



e3 



La 



to 



o 



ia 

 s 



3 O 



— P5 



O = 





.S 





lll>l|piU J.)ll S)J«(1 MUMllll SW n^ 



O <o 

 c^ — 



hitjS jati Birejoiir] jo siioinipy 



