Page:Timber and Timber Trees, Native and Foreign.djvu/229

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XXVII.]
ASH
209

Ash is extremely durable if felled in the winter months and properly seasoned before use; but where these precautions are neglected few woods are more perishable. Very great advantage will be found in reducing the Ash logs soon after they are felled into plank or board for seasoning, since, if left for only a short time in the round state, deep shakes open from the surface, which involve a very heavy loss when brought on later for conversion.

Ash wood, when beginning to decay, changes at the centre to a blackish colour, as also it will do if the trees are pollarded or topped off during growth, hence the "best quality" should be uniformly greyish-white throughout

There are several varieties of the Ash which attain timber size, and those which are raised for ornamental purposes in this country are very numerous. This tree is remarkable for its lateness in putting out its leaves in the spring, and for throwing them off very early in the autumn.

Table CVIII.—Ash (English).
Transverse Experiments .
Number
of the
specimen.
Deflections. Total
weight
required
to break
each
piece.
Specific
gravity.
Weight
reduced
to
specific
gravity
600.
Weight
required
to break
1 square
inch.
With the
apparatus
weighing
390 lbs.
After the
weight
was
removed.
At
the crisis
of
breaking.
  Inches. Inch. Inches. lbs.   lbs.
1 1.750 .05 8.500 879 750 730 219.75
2 1.500 .05 8.750 845 722 702 211.25
Total . 3.250 .10 17.250 1,7724 1472 1432 431.00
Average 1.625 .05 8.625 862 736 716 215.50