[ 10 J 
be thrown out on the lower fide of them, and upon 
this new earth the plants fhould be planted. If 
Jand of this latter defcription be black and peaty, 
afh is peculiarly proper for it; and will, if planted 
on the earth thrown from the drains, make a moft 
furprifing progrefs. If it be a ftiff yellow clay, it 
is generally more favourable to the growth of oak 
than of afh. In fuch foils, oak for t2mber, with a 
mixiure of willow, birch, alder, and Spanith chef- 
nut, for underwood, will perhaps be the moft pro- 
per. All thefe kinds fhould ftand one round of 
the underwood; and if ftill weak, fhould ftand 
two, before thofe are cut off which are intended 
for underwood, for the reafons before given. 
Birch plants are indeed an exception to this rule; 
they fhould always be cut off the fir# round of the 
underwood, for if they are large when cut off, the 
{tocks frequently decay and die. In all mixtures of 
kinds of wood for coppices, thofe forts fhould be 
ufed which are not unfriendly to each other, and 
which will come round fit to be cut together at the 
fame periods; and fuch kinds fhould be allowed to 
ftand for timber, and that at fuch diftances as to 
injure the underwood as little as poffible. The 
plants for filling up old decayed woods, fhould be 
the Prange and Ze? of their kinds. Thofe which 
are weak at firft will be drawn up by the fur- 
rounding underwood, and become from their in- 
creafed height ftill weaker. At the next cut- 
ting 
