Fig. 1. Rows 8 and 9 are to be cut out first and planted up the same vear 

 with young trees of the -new species. 



Fig. 2. At the end of 5 years, rows 6 and 7 are cut out and replanted, 

 this time the new trees in rows 8 and 9 should have made a good start. 



By 



8 



ill 



Fig. 3. After 10 years, rows 4 and 5 are cut out and planted. The new trees 

 in rows 6 and 7 have made a good growth and those in rows 8 and 9 are large 

 enough to give some protection. 



