National Conference on Forest Products es 
o be forest in securing the establishment show the possibilities of bringing about 
ome and satisfactory growth of a new crop reproduction through the so-called 
\DDY after the cutting of mature timber : shelter-wood method. 
Figures 1 and 2 show the same area In Figure 3 is illustrated a process 
in the years 1911 and 1923, respec- of treatment ordinarily indispensable 
tively. Figure 1 represents an even- to the establishment of a satisfactory 
aged stand of white pine 60 years old. young crop. In.many pine forests, 
A heavy thinning has been made for where pine reproduction is usually 
Lre- 
ome 
not 
, we 
now 
1ain- 
: the 
t of 
duc- 
nniu- 
any 
ral- 
But 
heen 
been F1¢. 1.—TFirst stage (1911) of a shelterwood cutting in white pine in the Harvard 
in 15 forest 
icul- 
sive the purpose of admitting light to the lacking, there is already a more or 
can forest floor so as to stimulate the ger- less complete thicket of hardwood 
ant- mination of seed. In this operation seedlings and saplings. This advance 
) we both logs and limb wood could be growth is sometimes desirable in it- 
TOM profitably utilized, and the very small self, but always so vigorous that un- 
IT. remainder of slash was burned. In less checked it will overtop and kill 
how the course of the ensuing six years young pine seedlings, which may have 
we abundent reproduction took place, originated at the time the old stand 
‘ove- amounting for much of the area to was cut. To correct this condition, 
an 
des, 
able 
any 
or 
edge 
sal- 
kind 
liza- 
ans- 
1itral 
1ally 
liza- 
[any 
d of 
due- 
To 
one Pie. 2 od cutting—old timber all removed ; complet. 
1 18. 2~—Ti 4 srwood cu — © all r dl; ete 
ever Binal stage (1920) oF Sh oiuction of white pine 
that 80,000 seedlings per acre. In Figure 2 whether to produce an adequate crop 
arg is shown the same area as it looked of pine or to make sure that the desir- 
yo in 1923. The remainder of the origi- able species of hardwood will survive, 
He nal stand was cut in 1918. Since then it is necessary to weed or clean the 
Li3g the pine reproduction has recovered young crop while still in its early 
er from the slight suppression due to stages, before the worthless elements 
var shade from the old stand, and is now have hopelessly suppressed the valu- 
growing vigorously. These two views able. In Figure 3 such species as pop- 
VE