rORESTKY ■FOR 4-H CLUBS 



23 



% 



Figure 17.— Effect of deforestation: Washing of soil and devastation of valuable farm lands at the 



heads of streams. 



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Figure 18.— Effect of deforestation: Sand bars in the stream channels. MiUions of dollars are spent 

 yearly in dredging our rivers to keep them navigable. 



