Retaining Walls and Their Planting. 



127 



PLAN 



FIG. 163. — STEPS WITH FRONT 

 EDGES ONLY OF STONE. 



SECTIOM 



FIG. 165. STEP WITH FRONT EDGES ONLY OF STONE. 



If the scarp is of actual rock there is no need for" the 

 wall except in cases where the strata tip down forward, 

 when plants could not be comfortably grown. But in 

 such a case it would be better to have some of the 

 wilder clematis or roses planted at the top to wreathe 

 and trail over the rocky 

 surface. 



The steps that 



accompany/ dry walling 



can be made 



FIG. 164. — DRY WALLING (SECTION) 



TIGHTLY RAMMED EARTH SHOWN BY 



VERTICAL HATCHING. 



Ill a verj' sim- 

 ple way, if it is 

 desired to save 

 the expense, 

 both of stone 

 and labour, 

 of paving the 

 whole surface. 

 The front edge 

 only need be 

 of stone, as 

 shown in Figs. 

 163 and 165 ; 



SECTION 



FIG. 166. — DRY WALL (SECTION) 



SHOWING PLANTING OF TOP AND 



FACE. 



ELEVATION 



FIG. 167. — ELEVATION OF PLANTED WALL, SHOWING GROUPING. 



