128 



TREES IN" WINTER 



earth about the tree and the mound may be encircled by curbing 

 from six inches to a foot or more in height. (See fig. 54). In 

 case of fills, a tree may often be saved by building up a well 



Fig. 54. A method of saving trees where the street grade is being 

 lowered. 



around it, as shown in figure 55. Unless the fill is too deep, the 

 tree may be saved by filling in around the base with large stones. 

 On lawns this is by far the better practice. By the time the soil 

 becomes filled in about the stones the tree will have thrown out 

 new roots nearer the surface. 



Injuries From Improper Pruning — The commonest and 

 probably the greatest injury to shade trees comes from improper 

 pruning and the failure to properly care for the wounds. (See 



Fig. 55. Where the grade must be raised about trees they may be 

 saved by the making of a "weU" about each tree. 



