372 AGRICULTURE. 



seen the inharmonious effect in massing to- 

 gether trees of these two extremes as, the 

 willow and the poplar. 



The texture of a tree is determined largely by 

 the form and the density of its foliage (Fig. 1 39). 

 By comparing the leaves of the arbor-vitae and 

 those of the pine, the great trembling leaves of 

 the cottonwood with those of the weeping wil- 

 low, the catalpa and cedar, the extreme differ- 

 ence will be at once apparent. 



The seasons bring a succession of charming 

 changes to trees. Spring brings only hints of 

 green ; summer brings the dense shadows ; 

 autumn brings the glorious colors ; but it is 

 left for winter, with its dull gray sky, to bring 

 out the true character or the individuality of 

 the tree its outline, manner of branching, and 

 the color of its bark. 



In summer a tree " is shut in of its own 

 leaves and shadow ; but when winter, with icy 

 sword-blade, hacks away the last tatter of sum- 

 mer finery, and leaves the tree to stand naked 

 as an Indian warrior, then does it proclaim 

 itself."* 



In the natural style of gardening, trees should 

 stand in irregular groups, or as individuals 

 standing alone, as if singled out on account of 

 unusual beauty of form, color, or structure (Figs. 

 140, 141). 



* W. A. Quayle's In Goifs Ont-of-Dwrs. 



