WHAT ABOUT TREE SURGERY? 



583 



pending death by disease or mutilation by wind-storms, 

 it did not seem so large. If I had had the amount of 

 it piled up in copper cents, the bulk of them would not 



narrower cavities are almost closed ; the trees have grown 

 vigorously and bloomed exuberantly. 



But there has been some later treatment by the tree- 

 surgeons. Just as with man-surgeons, they are learning. 

 When I think of the suffering endured by my father 

 in the thirty years he lived after the surgeons had done 

 their Civil War best and worst ! with his two legs, and 



CUTTING OUT A CHESTNUT BLIGHT CANKER 



A member of the Pennsylvania State Forestry Department being a tree 



surgeon, cut out this canker, filled the cavity and the tree was saved. 



have gone far toward providing me with the shade and 

 eye-satisfaction furnished by the living trees. 



All this was eight years ago. What has happened? 

 Has the tree-surgery been worth while? Did the patients 

 live? 



Indeed they have lived! And they have prospered 

 amazingly, as shown by the way in which the cambium 

 layer has "rolled" over the openings in the limbs and 

 trunks. Some bolt-heads are covered in ; several of the 



C.AMDIUM 



Pith 



-liEARTWOOp 



CROSS SECTION OF TREE TRUNK 



Copyright 1917 by International Film Service 



TREE SURGEONS OPERATE ON PHILADELPHIA'S VETERAN ELM 



The giant old elm, that has stood for nearly two centuries at the Dauphin 

 Street entrance to Fairmount Park, Philadelphia, has undergone a wonder- 

 ful and what promises to be a most successful operation at the hands of 

 the Park Commission's tree experts, diseased portions of the trunk having 

 been completely cut away and the huge cavity filled in with cement and 

 the limbs braced with bolt* and ban. 



