PRACTICAL ARBORICULTURE 179 



but those grown wild extend their roots to great distances and they cannot be 

 saved. The sap of evergreens is resinous, and, when once dried, cannot again be 

 moistened, the sap becoming hardened so it cannot flow. Xever allow them to 

 remain exposed to air or sun. 



Trees 18 to 24 inches high are proper size. In order to show how readily the 

 cedar may be pruned into all imaginable forms, we have engraved the Italian gar- 

 den of the late Air. H. H. Hunnewell, at Wellesley, Mass. 



This magnificent specimen of landscape architecture has been mostly if not 

 entirely formed by continuous pruning with a definite object in view, of the juniper 

 or cedar growing so abundantly in the vicinity. 



There are several other evergreens which may be used for snow guards, such 

 a? the American Arbor Yitae, which is a tree of northern regions. In fact, any 

 plant which will grow on rather barren lands without cultivation, and which will 

 bear shearing to dwarf its growth, may be used for this purpose. Still, as much 

 of the necessity for snow protection in cuts is within the semi-arid belt, there is no 

 evergreen quite so suitable as some form of the red cedar. 



