Webster's practical forestry : $b A popular handbook on the rearing and growth of trees for profit or ornamentWebster, Angus D.
Science
Webster's practical forestry : $b A popular handbook on the rearing and growth of trees for profit or ornament
Webster, Angus D.
Forests and forestry -- Great Britain; Trees -- Great Britain
A dry, open and airy situation, convenient to the work, but without
the wood, should be selected on which to harvest the bark, and rather
than this should be done in a sheltered, humid spot, the bark should be
carted to some distance off. The drying racks, or ranges, may be fully
2 ft. high, drooping somewhat to one side, and formed of forked sticks
driven firmly in the ground, while stout rods are placed transversely
upon these. It should also be so arranged as that not only may the
rain be thrown off, but so that the ends of the bark may be facing the
prevailing wind, thereby insuring a current of air through and beneath
the mass. After being carted or carried to the drying-ground, the
small bark is spread out loosely on the stage to a depth of about 6
in., and thatched or covered over with the larger pieces as a means of
protection against rain. Each day’s bark should be cleared up, and put
on the range the same evening, and oftener, if found necessary, during
damp showery weather, keeping the white or fleshy part downwards and
using the larger pieces as covers to run off the rain.
During favourable weather the bark will be ready for stacking in about
a fortnight from the time it was placed on the stage, but should
close damp weather intervene, it may be found necessary to turn the
bark occasionally, thus adding to the length of time required for
harvesting. It should, however, be remembered that the less turning
the bark receives after being placed on the stage the better will the
quality be. Well-seasoned bark has the fleshy side of a creamy colour,
whereas such as has been exposed to the sun or rain is of a dull brown,
and is wanting in tannin matter, and consequently of inferior value.
As soon as the bark is thoroughly dry and ready for stacking, which
may readily be ascertained by its breaking freely across rather than
bending or yielding to pressure, it should be secured in a shed,
ricked, or delivered to the tanner.
In stacking bark the rick should not be made too wide—say about 9
ft.—but well hearted, so that the side pieces may have a good fall
or declivity outwards to throw off the rain. The rick may be of any
length, according to the quantity of bark on hand, and of a height
proportionate to the width. The largest pieces of bark should be
reserved for thatching the rick, the whole being covered over by a
tarpaulin or waterproof cloth of some kind. In most cases the bark is
chipped previously to being sold, but as this necessitates having a
large shed at command, the system is not generally adopted. There are,
however, several advantages accruing from this method, not the least
of which is that the bark may be chopped up as it is removed from
the drying-stands, thus saving the expense of stacking. Chopping the
bark can also be done by the workmen during wet weather, and when not
otherwise engaged.
In computing the quantity of bark before stripping, we have found the
following data fairly reliable:—
Public-domain text, read in full here on John Shaqi.
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