The Hope pioneer., 1922-11-30

tCSlulGnl WHICH rs u1NdvS SuUJSCl "
destruction from an unpreventable
cause. \ better control Of fires would
undoubtedly result in an increase in
commercial refOrestation.
Takes Long to Realize.
Yet 1t is a forward-looking man
who will invest in business the prof
Its of which will accrue only to his
grandchildren. The slow growth of
trees does not recommend forestry as
business for an impatient man.
Science therefore, is coming to the
aid of those who would like quicker
profits. II is doing this through what
is known as laminated construction.
Laminated wood construction was
greatly developed during the war by
the forest products laboratory. In
plain language. IT. consists of gluing
small pieces of wood together to form
large piece and then turning or 9TH
erwise working or using the large
piece as If it were piece of clear
timber. Clues have been developed
that are practically as strong as the
wood itself, and they are now prac-
tically waterproof and bacteria proof.
Already such objects as gunstoclls. air.
plane propellers, aXletrees, bowling
pins and the like are being made of
Eliminated wood, and the development
is expected to produce beams, girders
and stringers that will be as strong
and durable as clear timber.
Using Laminated Wood.
The extension of the use of laminat-
ed wood will have profound effect
upon the lumber industry in more
ways than one. 1t will encourage the
commercial planting Of forests by en-
ahling the use of trees much smaller
than those now usually cut. and thus
shorten the period of rotation in for.
est culture. Furthermore, by making
salable small pieces of wood hereto
fore held valueless. lamination will
eXtinguish the burning slab piles
which have been as perpetual an ad-
jrnct Of the modern sawmill as the
altar fire was in the ancient temple
Of Vesta
Laminat!on will have another eff
feet. Heretofore the practice in the
woods has berll to reject those Sec
tions Of logs which by reason of i'm
I@rfections would not saw up into
clear timber. The section rejected
might contain much usable wood but
IL it was not entirely sound it was left
On the floor of the forest to rot and
add to the file hazard If the mill
can market small pieces of wood, it
can cut up these hitherto discarded
ln's and save what good timber they
co:ltain.
To the same end the fores. prod.
nrfs laboratory Is urging chairmakcrs
ard other uscrS OF wood in small
pieces. TO order their lumber cut to
size at the mills. abandoning their
present practice Of buying large pieces
and saving them up themselves. This
will further encourage the more COM
p'ete utilization Of the logs cut in the
forest
Endless Line OF By.Products.
AS to the use Of hy-products. the
ralniticatiOns Of the conservation
crusade are almost endless. The Chi
casso packing house las not yet found
Use for the pigs Suueal hut the lum-
hermen rave discovered they can use
the trees bark. Good taxpayer can
he made Of tlp bari; which nccrues al
the wootl-pulp mills. Bark, after the
tannin has been extracted. can also
be so used. Waste wood at the veneer
factories makes excellent paper. the
scientists have discovered. Newspa-
pars can he de-inked and made ur
into new paper.
Gven sawtlust. into which 13 per
cent Of all timber coming to the mill
is converted. has not escaped atten-
ticn. 1t can he used as human food.
with 81 COW acting as intermediary
between the sawmill and the diner
In other words. it is possible by q
sinsnle chemical process to turn mucl,
Of tie cellulns" of sawtlust into sugar
witch is digestil'e hy cattle.
Grain alcohol csn also he made a.
sawdust and OF thn small branches
and twigs of trees The scientist fore.
sees the day when Il large part of the
automobiles Of the United States will
be driven by fuel derived from this
source