40 



rior for streets and parks. It makes a well-proportioned tree, while 

 the wide-spreading crown w r ith the abundant shade-producing foliage 

 is a welcome sight anywhere. The wood is tough, so the tree is not 

 easily injured by storms. Leaf-destroying insects sometimes de- 

 foliate the elm, and borers occasionally attack it, but neither are 

 serious pests in western Kansas. 



White elm is not quite so hardy as honey locust, but it is suitable 

 for both upland and valley planting throughout nearly all of western 

 Kansas, and with care will grow almost as rapidly in one situation as 

 another. 



Some representative measurements are given. Owing to the fact 

 that elms are so frequently large and of uncertain age when set, an 

 estimate of the rate of increase is difficult, but it is thought that the 

 figures fairly indicate the average. 



Growth of upland ivhite elm. 



Growth of valley or watered white elm. 



PINES. 



The pines have been neglected in the selection of species for plant- 

 ing largely through ignorance of their desirable qualities and suita- 

 bility for western Kansas. They are not so hardy as red cedar, but 

 grow more rapidly, the rate comparing favorably with that of the 

 honey locust. A third of an inch in diameter and 1J feet in height is 

 not an uncommon annual growth. Pines are excellent for shelterbelts, 



[Cir. 101.] 



