60 TOWN PLANTING 



for planting in smoky towns . As a proof of this, 

 there are to be found numerous fine specimens 

 of the tree in a flourishing condition, and 

 clothed with the most healthy foliage in some 

 of our largest cities to wit, London, Glasgow, 

 Liverpool, Warrington, and Sheffield. The 

 Black Poplar may be somewhat stifT in outline, 

 but there is, nevertheless, an air of grace about 

 it that is wanting in any other tree I can bring 

 to mind. It is a tree of the readiest culture, 

 while, as to its rate of growth, a specimen of 

 looft. in height has attained to that size in 

 less than sixty years. The wood, unless for 

 a few special purposes, such as cart-bottoms, 

 brakes, &c., is not of great value; but the 

 tree is, nevertheless, a profitable timber pro- 

 ducer when grown in suitable soils. Good 

 examples of how the Black Poplar succeeds in 

 London may be seen at Gray's Inn Road, 

 Lambeth, and at St. Giles-in-the-Fields. 



THE CANADIAN POPLAR (P. canadensis) 

 and its variety, P. c. nova, are excellent trees 

 for planting in smoky localities. The former 

 succeeds admirably in the very centre of 



