140 PR.A^CTICAL LANDSCAPE GARDENING 



Stone walls with mortar joints should be less finished in texture 

 than the house walls. The joints should be raked out to a depth 

 of from two to three inches. The shadows produced by this treat- 

 ment have a softening effect and the \dnes, extending their clinging 

 tendrils into the interstices, seem to be more firmly fixed to the 

 supporting structure. 



COPING 



The coping should be of stone similar to that in the body of the 

 wall (Fig. 118), with a projection of two to three inches, according to 

 the roughness of the face. This refers to a coping of stones laid flat. 

 If the coping stones are set on edge they should be set flush with the 

 sides of the wall. The coping should be level along the top. 



The irregular or so-called scotched coping is not at all satisfactory 

 for a garden enclosure, as it is a line of agitation and most unrestful. 



BRICK W.^LLS 



The brick wall (Fig. 119) as a garden enclosiure is not so pleasing 

 from an esthetic point of view as those of other materials. Be- 

 cause of the color it does not make a good background for many of 

 the flowers. If brick is used a dark shade should be selected and 

 laid with a broad mortar' joint. 



A brick wall should not be less than twelve inches thick and 

 should be laid in cement mortar on a good foundation of stone or 

 concrete extending not less than four inches on each side beyond 

 the face of the finished wall. To economize on a quantity of brick 

 the wall may be paneled and piers placed at intervals of from ten to 

 twelve feet apart, using a nine-inch wall between them. 



An effective and practical wall may be constructed by laying 

 the brick lengthwise, four inches thick, with a two-inch opening 

 between the ends. In this construction the piers should be placed 

 eight feet apart. 



The coping for a brick wall may be of brick on edge, molded 

 brick, brick laid on an angle of 45 degrees, cement cut stone, or tile. 

 The coping should have a projection of not more than an inch on 

 each side of the wall. A coping set flush is quite agreeable. All 

 brick walls should be clothed with clinging vines trained over the 

 top to break the line and soften the effect. 



