PART III 



Sylvicultural Characteristics and Treatment of the Various 

 American Species of Trees. 



The solution of the question as to how foreign 

 trees stand in regard to heat and light, the 

 different chemical and physical composition of the 

 soil, technical treatment of seed, planting and 

 raising, is just as important for the cultivation of 

 the foreigner in Europe as for its cultivation in its 

 own home in America, For the proper utilisation 

 of European experiences in America it should 

 be noted that ; 



I. In the European reports concerning the 

 attempts at raising them, unfortunately very little 

 information (and that only superficial) is given on 

 the subject of the causes of non-growth or total 

 disappearance. 



It must be admitted that it is sometimes a very 

 difficult matter to get such information, and in 



many cases it is even now quite impossible. 



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