56 



ARBOR DAY ITS HISTORY AND OBSERVANCE. 



made for such aii extensive country as ours. Trees which will grow 

 well and are all that can be desired in one portion of it are not suitable 

 for another. Trees which are at home on the Pacific Coast will pine 

 away and die on the Atlantic. Even in localities separated by only 

 a few miles the same kinds of trees may not flourish. Differences of 

 soil and climate, or a particular exposure, determine to a great extent 

 what trees are to be chosen if we would be successful in our planting. 

 In cities, the prevalence of smoke in the atmosphere, or the escape 

 of illuminating or other gases, complicate the problem and make the 

 selection additionally difficult. 



The American Forestry Association appointed a committee several 

 years ago for the purpose of making a list of trees most desirable for 



street planting, but the committee has not yet reported. To make a 

 list large enough for the whole country would be to include so many 

 trees that it would be of little use for any particular locality, and to 

 make one for a given place would be of little use to the country at large. 

 Each locality must have its selection of trees made with reference to its 

 particular circumstances. Happily, we have an unusually large variety 

 of trees, excelling by far that of any other country, which admits a 

 choice of valuable kinds adapted to every situation. Trees can, indeed, 

 be acclimated, as people can, and when removed from their native places 

 to other and different ones can be made to adapt themselves to their new 

 environment. Their growth, however, is apt to be more or less feeble 



