76 ROCK GARDENS 



degree in granite or sandstone. Now this 

 grain should, in a great measure, rule the 

 construction of the rockwork. When in its 

 natural position the strata runs in a certain 

 uniformity ; therefore when building the rock- 

 work each stone should be so placed that its 

 grain coincides with that of those next it. 



Wrong Method. 



Right Method. 

 Fig. 5. 



Examine carefully the formation of each 

 rock, and, if its strata is vertical, the rock 

 adjoining must be the same ; if oblique, it 

 should be built into one having a similar 

 formation. In this case it is necessary to note 

 that its dip should continue in the same plane, 

 as otherwise the lines of grain would meet in 

 a V shape (fig. 5). If, as is sometimes the 



