50 THE CANADIAN FORESTER'S 



days, the odds are that it lacks moisture, a want always 

 irremediably fatal. 



The balsam-tree grows to sixty feet high by tw^o and 

 a half in diameter ; the white-poplar to eighty feet 

 high—a very fine tree it is, too— the cotton- wood, reaches 

 forty feet by one in diameter. The only one of these 

 valued for its wood is the white-poplar, though the 

 cotton-wood furnishes good pulp for the manufacture of 

 paper. Engravings No. 19, p. 46, and No. 20, p. 41, re- 

 present the leaf and seed of the cotton-wood, and 

 No. 21, p. 47, a bough and the leaves of the American 

 aspen. 



i4.— Leaves of the white-willow, 



SalixAlba — Wliite Willow. Salix Vitellina—Yellow-vnllow. 



The willows, though, according to -some, they may 

 not be indigenous in the country, have so spread them- 

 selves throughout it, that they are able to dispute the 

 rights of the original occupants of the soil, and on this 

 account, I shall treat them as autochthenes, and class 

 them as such in my general list. The willow delights 



