The daily telegram. [volume] (Clarksburg, W. Va.) 1901-1926, 1914-06-05

CES DGSL VI
shavinss, and one of the pianed
boards. Last comes newly finished
dwelling house, around which are the
odds and ends of the lumber left over
from the building.
What Wood is Wasted.
The relative amount Of material
used and wasted is indicated roughly
In these models, but IS shown accord
ing to actual scale in another part OF
the exposition in a series of diagram
matte charts. In the logging process,
thirteen per cent NJ the standing tree
Is left in the stumps and tops, leaving
81 per cent to go to the sawmill. The
various forms of waste shown at the
sawm!ll constitute about ~ per cent
OF the original tree so that the rough
boards constitute the remaining "A
per cent. Most OF the sawmill waste
is unavoidable, il is asserted, and due
To economic conditions; the millmen
say they take out all they can afford
to.
Seasoning reduces this to 40 per
cent. After the planning and other
finishing processes, the finished lum-
Der forms only 80 per cent of the
tree The waste involved in btild-
ing the house amounts to four per
cent more, so that the proportion Of
the original tree which finds itself
finally in the finished dwelling is not
more than 10 per cent
How Waste is Utilized. ii.
But all of the two-thirds need not
be wasted. Some of it at least should
go into by-products. according to the
forest service which is studying such
utilization. The bulk of the waste,
such as tops, bark, slabs, and edg--
ings. can be made into charcoal. tur-
pentine, fannie acid, wood alcohol,
acetate of lime, pulp and paper, and
even the sawdust is made into wood
alcohol and grain alcohol, and used
in different forms for fuel.
Illustrations of this utilization of
mill waste are shown at the exposition
in a series of wall cases. One case
shows the use by knife manufac-
turer of the dogwood waste OF a maxi
er of shuttle blocks. Another case
shows how the waste involved In MAX
ing large school furniture is convert
ed into scrubbing brush backs for a
brush factory. Other cases display
shoe lasts made from discarded ten
pins, the use OF waste veneer cores
for mine rollers and for paper pulp
sweeping compounds, and bowels of
various sizes manufactured from CO.
operage waste.
Non-InHammable Shingles.
Another exhibit consists of the in
flammability test upon shingles treated
with certain chemicals. One-half of
a single is treated, the other half
left untreated. With the best pre-
servatives so far devised. flame
which causes the untreated half to
burn does not affect the treated half.
Portions of the various mechaniSms
for using saving wood for an tmpor-
tant part of the exposition. Thus a
model preservation plant is shown,
consisting OF two small storage tanks,
a pressure cylinder. a yard and track,
together with photographs of one of
the largest wood preservation plants
in the country. This Is not complete
working model: only certain forms are
used TO show the general scheme of
the plans.
Another exhibit shows a small run
ming model OF paper machine. This
IS used in explaining the process of
making paper from wood. The sam
pies of paper made at this laboratory
from woods not generally used, in
comparison with standard woods, IL
lustrate the possibility of using new
species and utilizing the mill waste.
The cup system OF turpentining is
t. To-,
furious to the tree as the old box
ing method, reduces the fire hazard
and gives greater yields. The forest
service favors the use of the cup sys-
TEN and the exhibit will show the two
methods contrasted, both as 10 injury
to the tree and difference in yield.
\ Miniature National Forest.
Beside the main exhibition relating
to forest products, there are certain
exhibits relating to other branches
OF forestry. One of these consists Of
miniature model Of Rocky Noun
tain national forest This model
shows ranger station and govern
ment tree nursery. besides a system
OF roads. trails bridges, fire lookout
towers and telephone lines, all bull
and maintained by the government;
by means of them the national forests
are both protected from fire and rem
dered accessible 10 use.
Another striking model suggests the
contrasted effects upon stream run-off
and erosion of forested and derorest-
ed slopes. The model consists of two
simulated hillsldes-one of bare soil,
the other clothed with vegetation
Water from above is sprinkled alike
upon both hills and runs AZ into two
pools. The pool supplied from the
bare soil becomes clouded with silt
washed from the unprotected sur
face; the other pool shows only clear
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