198 LANDSCAPE-GARDENING 



the highway officials to attend to as well as the con- 

 struction of the road-bed itself, and these officials 

 should include among their number, or be advised 

 by, a competent landscape-gardener. In some states 

 no attention whatever is given to the planting here 

 advocated, while other states, like New York and 

 Massachusetts, are making intelligent progress. The 

 old idea of having a row of trees on each side of a 

 highway, the trees in the rows being spaced at uni- 

 form intervals, is giving way to the more artistic 

 arrangement of groups placed in a natural way. 

 These groups may contain both trees and shrubs. 

 The tree growth may be that of one species or of 

 several, and the same is true of the shrubs and also 

 of the herbaceous material that may contribute to 

 the general effect. With this freedom of arrangement, 

 a wide space between groups may be left where 

 there is a notable view, and again where there is no 

 view the groups may be close together or contin- 

 uous for a long stretch of highway. By adopting 

 this method, highways might become as attractive 

 as any natural road through the woods. The native 

 species, or those of similar type and character, are to 

 be preferred, both because they match the landscape 

 and because they are hardy and dependable. 



