ARBOR DAY. 89 



for classes, as at colleges, to plant some tree or shrub in 

 some portion of the grounds on this day. In case of 

 churches, the trustees should see that Arbor Day be im- 

 proved by planting shade trees all about the lot, and 

 keeping them in, good condition by removing and replac- 

 ing, as the occasion may require. 



WHAT TO PLANT. In recommending varieties there is 

 a great diversity of opinion ; there are some adapted to all 

 sections. Nothing can take the place of the white elm, 

 but they should not be nearer than twenty-five feet, and 

 for street planting forty feet is better. The hard maple is 

 king among trees and cannot be extolled too highly. The 

 ash comes nearer the hard maple than any other tree, and 

 the linden is queen in the forest and suitable for all loca- 

 tions ; and yet, when the soft maple leaf louse troubles the 

 maple and box-elder, it will restrict the planting of the 

 basswood unless the leaf louse has entirely disappeared. 

 An elm at each corner of the lot and the rows filled be- 

 tween with alternating hard maple, ash, catalpa, hickory, 

 or linden, any of which would make nice trees, and for 

 variety and contrast would be acceptable. For the school 

 lawn there is nothing equal, for a single tree, to the cut- 

 leaf weeping birch. For screens to outbuildings nothing 

 is so good as the American arbor vitae, which can be 

 better planted at eighteen inches to two feet high, than 

 larger ; yet where contiguous to a nursery, trees can usu- 

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