Yorkville enquirer. [volume] (Yorkville, S.C.) 1855-2006, 1922-10-20

tice of buying large pieces and saving
them up themselves. This will fur
ther encourage the more complete
utilization OF the logs cut in the forest,
AS to the use of by-products, the
qualifications of the conservation cru
sade ere almost endless. The Chicago
packing house has not yet found a use
for the pigs squeal, but the lumber
men have discovered they can use the
trees bark. Good tarpaper can be
made of the bark which accrues at the
wood pulp mills. Bark after the tan
min has been. extracted can also be
used. Waste wood at the veneer fac
tories makes excellent paper, the sci
entists have discovered. Newspapers
can be de-inked and made up into new
paper.
Even sawdust, into which 13 per
cent of all timber coming to the mill
is converted, has not escaped atten-
tion. 1t can be used as human food,
with a COW acting as intermediary be-
tween the sawmill and the diner. In
other words, it is possible by q simple
chemical process TO turn much Of the
cenuiose OF the Tsawdust into sugar,
which is digestible by cattle.
Grain alcohol can also be made OF
sawdust and OF the small branches and
twigs of trees. The scientist foresees
the day when a large part of the auto
mobiles of the United States will be
driven by fuel derived from this
source.
Yet it is forwardlooking man who
will invest in a business the profits of
which will accrue only to his grand
children. The slow growth of trees
does not recommend. forestry as q
business for an impatient man. Sci
ence, therefore, is coming to the aid of
those who would like quicker profits.
1t is doing this through what is known
as laminatcd construction.
Lamirated wood construction was
greatly developed during the war by
the forests products laboratory. In
plain language, it consists of glueing
small pieces of wood together to form
q large piece and then turning or 9TH
erwiSe working or using the large
piece as if it were a piece of clear
timber. Clues have been developed
that are practically rs strong as the
wood itself, and they are now practi-
cally water proof and bacteria-proof.
Already such objects rs gun stocks,
airplane propcllc"s, aXlctrees, bowling
pins, and the like, are being made of
laminatcd wood, and the development
is expected to produce beams, girders
and. stringerS that will be as strong
and durable rs clear timber.
Using Laminstcd Wood.
The extension Of the use OF lamina-
ted wood will have q profound effect
upon the lumber industry in more
ways than one. It will encourage the
commercial planting of forests by en-
abling the use of trees much 3maller
than those now usually cut, and will
thus shorten the period of rotation in
forest culture. Furthermore by MAX
ing salable small pieces of wood here
tofore held to be valuelcss, lamination
will cXtinguish the burning slab plies
which have been as perpetual an ad-
junct OF The modern sawmill as the
altar fire was in the ancient temple of
VcSta.
Lamination will have another effect.
Heretofore the practice in the woods
mas been to reject those sections of
legs which by reason Of impcrfections
would not saw up into clear timber.
The section rejected might contain
much wood, but if it was not entirely
sound it was left on the floor of the
forest 20 rot and add To the fire haZ-
ard. If the mills can market small
pieces of wood, it can cut up these
hitherto discarded logs and save what
good timber they contain.
r. Lyman Love. Charleston chiro-