Bracing and Repairing Trees 169 



larly in the case of young and fast-growing trees. The main 

 point is that the bands should be fixed in such a way that 

 friction to the bark is avoided and the flow of sap unin- 

 terrupted. Unfortunately in the past this has not in all 

 cases been carefully provided against, with the result that 

 the bands, owing to their being too small, gradually became 

 embedded in the wood and, by injuring the cambium and 

 preventing the flow of sap, defeated the object for which 

 they were intended. For fuller information on doctoring 

 trees, the reader is referred to my book on Tree Wounds 

 and Diseases. 



