ROCKWORK FOR FERNS 6 1 



as if they might wash away, but, having 

 withstood the elements for some fifteen 

 years, they are not likely to vanish in the 

 near future. 



They are, however, sufficiently disinte- 

 grated to make the limestone with which 

 they are impregnated available for the cliff 

 dwellers to be grown thereon. A few other 

 conglomerates, chiefly limestone and quartz, 

 are in the foreground. 



INSURING PLENTY OF MOISTURE 



This was an especially dry corner, as the 

 trees and shrubbery absorbed the natural 

 moisture from the soil. For this reason, 

 after the ground was cleared the hose was 

 turned on and the water allowed to play for 

 many hours before any filling was piled on. 

 This in turn was wet down in instalments. 

 Evaporation was thus checked and the soil 

 thoroughly settled. 



To insure a good slope of the side slabs, 

 which diverge from a beautiful central up- 



