32 



experiments a good deal In Germany ^ and also 

 in Austria,^ owing to its rapid growth. For 

 what purpose the soft, low-valued wood is to be 

 used is unknown. The ornamental value of the 

 tree is great, though it is very liable to be broken 

 by wind and snow in the late autumn. 



3. Acer sackarinumy Wanghm., Zuckerahorn, 

 Hard Maple, Sugar Maple. 



According to Booth, 3 this tree was introduced 

 into Germany in 1735. 



This tree was brought into the planting ex- 

 periments chiefly because of the quality of its 

 wood, which was exceedingly exaggerated 

 through the imports and value of bird's-eye 

 maple wood. Dr. Mayr4 first mentioned im- 

 portant reasons for planting and the advantages 

 of this tree species in comparison to the indigenous 

 great maple or sycamore ; namely, the sugar 

 contents of the sap and the greater shade- 

 bearing capacity of the same tree. 



• " Die Arbeitsplane fiir Anbauversuche und fiir die Unter- 

 suchung des waldbaulichen Verhaltens auslandischer Hol- 

 zarten." Danckelmann und Mundt, " Jahrbuch der preuszischen 

 Forst- und Jagdgesetzgebung," 14 Bd., 1882, pp. 13, 27. 



^ The planting of this tree has been practically given up. — 

 Editor. 



3 " Feststellung der Anbauwiirdigkeit auslandischer Wald- 

 baume," Berlin, 1880. 



* "Die Waldungen von Nord-Amerika," Miinchen, 1890. 



