100 ELEMENTARY FORESTRY. 



hopelessly injured. However, trees that to the novice may seem 

 hopelessly crooked may only have crookr in them that will be 

 outgrown in a few years. 



STREET TREES. 



Success with ^Street Trees is perhaps more dependent on 

 good soil about the roots than on any other one factor. If the 

 land is so very sandy or gravelly as to be subject to drouth, at 

 least two cubic yards (two full two-horse loads) should be taken 

 from where each tree is to be planted and the same amount of 

 good clay or loam substituted for it. If in subsequent years the 

 trees outgrow the limits of the material supplied, more of it 

 should be added, and if this consists largely of stable manure, 

 so much the better, provided it does not come into contact with 

 the roots of the trees. It is important to do this work thor- 

 oughly, for one tree well planted is better than a dozen poorly 

 set out. 



Kinds of Trees. The best trees for street planting in this 

 section are the White Elm, Hackberry, Green Ash, Basswood, 

 Boxelder and Soft Maple. All of these trees do well in good 

 soil, and with the exception of the Soft Maple they all do well 

 in rather inferior land. Evergreens may sometimes be used to 

 advantage along narrow drives, but they are seldom desirable as 

 street trees. The trees planted should be about two to four 

 inches in diameter near the ground, eight or ten feet high, and 

 of thrifty growth. Much larger trees are sometimes set out, but 

 it is not advisable, as a rule, to plant those that are over four 

 inches in diameter. Smaller trees are often planted and do well 

 if properly cared for, but need more attention in directing their 

 growth than those that are larger. But small, thrifty trees are 

 much better for street planting than large stunted trees. In all 

 cases it is more important to have plenty of good roots than a 

 large top, as a top can soon be developed if the roots are good. 



Distance Apart. The distance between trees depends on 

 the kind planted and the quality of the land. On rich land in 

 this section the trees named should be put forty feet apart, in 

 fairly good soil about thirty feet, and in poor soil twenty feet 

 apart. This gives sufficient room for good development, but 

 where a quick effect is wanted it is a good plan to set the trees 



