TREE REPAIR 



177 



two branches has a short bolt passed through it horizontally, 

 and the two short l^olts are then connected by a third bar. 

 This arrangement will shift all the pressure caused by the 

 swaying of the limbs to the middle connecting-bar. In 



Fig. 121. — Diagram Showing the Triple-bar Method of 

 Fastening Limbs. 



case of a wind-storm, the middle bar will be the one to l)end, 

 while the bolts which pass through the limbs will remain 

 intact. The outer ends of the short bolts should have 

 their washers and nuts slightly embedded in the wood of the 

 tree, so that the living tissue of the tree may eventuall}^ 

 grow over them in such a way as to hold the bars firmly 



