A treatise on the origin, progress, prevention, and cure of dry rot in timber : $b with remarks on the means of preserving wood from destruction by sea worms, beetles, ants, etc.Britton, Thomas Allen
Science
A treatise on the origin, progress, prevention, and cure of dry rot in timber : $b with remarks on the means of preserving wood from destruction by sea worms, beetles, ants, etc.
Britton, Thomas Allen
Dry-rot; Wood -- Preservation
It would appear then, as far as vaporization is concerned, that the
action of the vapour of carbolic acid is not sufficient; in fact, it
is sluggish and heavy, whilst chloroform and benzine are volatile and
penetrating. The experiment with chloroform appears to prove that the
vapour kills the worm, and, as no beetles appeared in the case during
the summer, it may be inferred that it _killed all_ the worms within its
influence.
From the pungency and penetrative action of the benzine, as also its
volatile character and the fact that no life in the form of either worm
or beetle was manifested in the case in which it was used, it seems fair
to infer that it is more effective than even the chloroform.
Vaporization on a large scale might be adopted by having a room made
as air-tight as possible, stopping up the chimney, pasting the window
frames, &c., and placing infected furniture in the room, burning
brimstone, or filling the room with fumes of prussic acid, chloroform,
or benzine. It would have to be practised at the time when the perfect
beetles made their appearance; their destruction at that time involving,
of course, the prevention of further injury by their progeny.
II. SATURATION.
The experiments made with bi-chloride of mercury (corrosive sublimate)
and methylated spirits of wine were not so successful as by vaporization,
on account of the woodwork when dry (after having been saturated with the
solution) having a varnished appearance.
No experiment as to the effect of saturation in a solution of corrosive
sublimate in water was made: 1st, because of the great risk to delicate
carvings or pieces of furniture by their immersion in water, or the
bringing up of the grain of the wood by treatment with a brush; and 2nd,
because the vaporization by benzine appeared to be quite sufficient to
destroy the larvæ.
* * * * *
Before terminating this chapter, we trust a few words about carvers and
carvings will not be out of place.
There are two kinds of carvers, the _house carvers_ and the _ship
carvers_; the former are used to flat and square surfaces, the latter to
the rake or fay, as was the old term.
About the period of Louis XIV. Malines was remarkable for its wood
carvers, and the inhabitants might be seen sitting at their doors in the
streets, plying their art in the same manner as now in many of the German
and Swiss towns. Many works of art and decoration of Flemish origin are
still preserved in England;[39] the works of Flemish carvers in wood were
in great esteem, and there are numerous fine examples in the churches
of Norfolk, and other parts of England which may be regarded as their
productions. Evelyn remarked that Gibbons came from the Low Countries.
Public-domain text, read in full here on John Shaqi.
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