358 Obfervations on the Advantages 
cattle; they will need no farther attention. I 
put a number of cuttings, about a foot in length, 
into fome ground well trenched, in the fpring ; 
and, in the autumn of the fame year, they. were 
grown to the height of upwards of four feet, 
were well rooted, and remarkably fine plants. 
They are of fuch rapid growth, that I faw.a fall 
of this timber, which grew ina hedge-row, and 
average, at twenty-one fhillings each tree ; and I 
was afterwards informed that this price was much 
beneath their real value. ‘I planted fome Pop- 
lars (what we term Lombardy Poplars), 
about twelve years ago, which are now ‘three 
feet two inches in circumference at the thickeft 
part, and upwards of forty feet high. This is 
a pleafant looking tree, and does well enough in 
an ornamental plantation; but the wood is of 
little or no value. Another confiderable. advan- 
tage in the white or black Poplar, is that a greater 
number of them will grow on the fame fpace of 
land, than of any other tree: For it is requifite, 
that all the fide branches be dreffed off, every 
two or three years, nearly to the top of the tree. 
This gives fo much freedom to the circulation 
of the air, and admits the fun fo freely among 
them, that, on the fame fpace of land, may be 
brought to perfection, a number double to that 
of any other tree—For this reafon we fee them 
fo 
