78 
LANDSCAPE GARDENING. 
even where a very few trees are used, of which any 
person may convince himself by placing a few dots on 
paper. Thus two trees (fig. 15), or a tree and shrub, 
which is the smallest group (a), may be placed in three 
different positions with reference to a spectator in a fixed 
point ; if he moves round them, they will first vary in form 
separately, and next unite in one or two groups, according 
to the position of the spectator. In like manner, three 
trees may be placed in four different positions ; four trees 
may be placed in eight different positions ( b ) ; five trees 
may be grouped in ten different ways, as to ground plan ; 
six may be placed in twelve different ways (c), and so on.” 
Encyclopedia of Gard.) 
'"St 
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[Fig. 15. Grouping of Trees.] 
In the composition of larger masses, similar rules must 
