SHADE TREES. 



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should be treated antiseptically to prevent decay. Strictly horizontal cuts 

 should never be left. They retain water so that rot is likely to result, and 



- Showing the evolution of a cavity and method of treating it: (a) long stub left 

 from pruning; (6) beginning of decay; (e) more advanced stage; (d) cavity formed 

 in the wood; () longitudinal section of the trunk showing cavity; (/) cavity cleaned 

 out and ready for orifice covering. 



of pruning large limbs: (a) tree before pruning; (6) showing relative 

 >t cut from the tree trunk; (e) the same with limbs cut close and the 

 with mallet and chisel. 



the cleaner the cut the better it will heal. There is, moreover, less chance 



for subsequent rotting. 



