THE NATURAL ROCK GARDEN ^S 



and defined dip or grain, though perhaps not 

 as well marked as the latter. 



As it is obviously impossible that any 

 definite rules can be laid down as to how 

 such pocket or fissure is to be formed, the 

 reader must exercise his own judgment in 

 the matter, and utilise the grain of the 

 rock to the best advantage. In no case 

 should a pocket or a crevice, whether per- 

 pendicular or horizontal, be made in an 

 overhanging rock face. Of even greater 

 importance is the necessity of ensuring that 

 the bottom of each pocket can be drained 

 thoroughly, even should this entail cutting 

 through solid rock. If this, however, be 

 found impossible owing to position, or other 

 circumstances, in order to prevent water 

 lodging, fill up the pocket with rough 

 concrete to the point where the draining 

 becomes efi^ective. 



When there is a difficulty in getting a 

 sufficient number of natural pockets in the 

 rock a good deal may be accomplished with 

 the assistance of cement, yet it should never 

 appear in the completed work, but always 



