DEPARTMENT OF MUNICIPAL ARBORICULTURE 253 



and the tree number. A small, inexpensive brass label 

 bearing the tree number might be attached to the guard of 

 each newly planted tree for the purpose of identifying each 

 specimen. 



The assigning of numbers to newly planted trees enables 

 the tree warden to keep a record of the behavior of new 

 plantations. Each tree may be recorded on a separate card 

 having the following form : 



RECORD OF TREES PLANTED 



Records of the behavior of trees form a fair basis for 

 the judgment of the hardiness of certain species, the quality 

 of stock purchased from various nurseries and the peculiar 

 local conditions affecting tree growth. The causes of the 

 failure of trees should be definitely determined, in order to 

 remedy, if possible, the conditions before new trees are set 

 out, or to improve cultural methods after they are planted. 

 A few years after planting, the life stories of trees might 



