74 ARBOR DAY. 



maple is a rapid grower, and on this account is largely 

 planted. For the first five years after being set out it 

 makes a handsome tree, but the head soon becomes thin 

 and open and the branches are easily broken by the wind. 

 To keep it in good shape the tree should be cut back 

 every four or five years. The Norway maple seems to 

 combine the good qualities of the other maples without 

 their faults, and is worthy of more general planting. 

 In some localities the sycamore maple does well. The 

 American and European lindens, or basswoods, are valu- 

 able, especially on streets. Their regular and symmet- 

 rical forms and their fragrant flowers place them well 

 at the head of the list. 



On bluffs and upland soils, the white, red, and other 

 oaks thrive and deserve a prominent place in the collec- 

 tions, but are difficult to transplant. The sycamore is 

 valuable for cities where the gas and coal smoke injure 

 the more valuable kinds. Deciduous cypress, and if the 

 grounds are large, nut trees, as the walnut, pecan, and 

 hickory, and a few fruit trees, as the apple and plum, may 

 be planted. Of evergreens, the Austrian, white and Scotch 

 pines are valuable in the order named. To keep them in 

 .shape the leading shoot on each of the branches should be 

 removed each year after the tree has reached a height of 

 four or five feet. Among the arbor vitae the Chinese best 

 "withstands our hot, dry summers, after which come the 



