Tree Surgeons at Work 



Above : Healing soon takes place 

 and the cambium (new growth of 

 bark) rolls gradually over the 

 cement filler, sometimes com- 

 pletely concealing the patch 



Left: A tree whose trunk 

 split asunder. The doctor has 

 inserted eyebolts and has drawn 

 the branches together again 

 by means of wire cables 



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