MEANS TO THE END. 
169 
seek to pursue, namely, to imitate, as nearly as 
possible, the appearance and disposition of natural 
rocks; and, judging from the specimens we have 
seen of this kind of rockery, the imitation of 
Nature is very successfully effected. When¬ 
ever possible, Nature herself is brought into 
requisition by resort being had to the rocks which 
are actually procurable in any locality where it 
may be desired to construct a fernery. If no 
stone can be quarried or otherwise obtained in 
the neighbourhood of a proposed fernery, rockery 
is artificially formed by an aggregation—with the 
aid of cement—of burrs, rough bricks or concrete, 
the colour of the cement which is used, not only 
to bind but to cover the conglomerate mass, being 
adapted to the actual colour of the natural rock 
in the locality. By this system of building up 
masses of conglomerate material it is, it will be 
seen, comparatively easy to construct what will 
have the appearance of huge masses of rock in 
situations where it would either be impossible, or 
a matter of the greatest possible difficulty, to in¬ 
troduce actual masses of natural rock. In the 
disposition of this Pulhamite rock art is brought 
l 2 
