ORCHARD CULTURE. 



535 



trees are in each row. The following table shows the q umber 

 of trees or plants required to the acre at given distances apart: 



40 feft apart 28 



33 " '• 40 



25 " " 70 



20 " '• 108 



15 " •• 194 



12 feet apart 302 



10 " " 436 



8 " " 680 



6 " " 1208 



4 " " 2720 



The rule for guidance should be to allow space enough at 

 least on two sides of the tree freely to admit the sun and air. 



Note. The pruning saw and chisel and pole pruning shears {Figs. 129 

 and 130) will be found exceedingly useful in cutting high limbs, removing 

 the wolts of worms, cutting off fruit in the tops and on the outermost 

 branches of large apple trees, etc. They can be had of any dealer in 

 implements. 



