DRY ROT , a fungoid disease in
See also:timber which occasions the destruction of its
See also:fibres, and reduces it eventually to a mass of drydust . It is produced most readily in a warm, moist, stagnant atmosphere, while
See also:common or wet rot is the result of the exposure of
See also:wood to repeated changes of
See also:climatic conditions . The most formidable of the dry rot fungi is the
See also:species Merulius lacrymans, which is particularly destructive of coniferous wood; other species are Polyporus hybridus, which thrives in
See also:ships, and P. destructor and Thelephora puteana, found in a variety of wooden structures . The
See also:felling of trees when void of fresh
See also:sap, as a means of obviating the rotting of timber, is a practice of very
See also:ancient origin .
See also:Vitruvius directs (ii. cap . 9) that, to secure
See also:good timber, trees should be cut to the pith, so as to allow of the
See also:escape of their sap, which by dying in the wood would injure its quality; also that felling should take place only from early autumn until the end of winter . The supposed
See also:superior quality of wood cut in winter, and the early practice in England of felling oak timber at that
See also:season, may be inferred from a
See also:statute of
See also:James I., which enacted " that no
See also:person or persons shall fell, or cause to be felled, any oaken trees meet to be barked, when bark is worth 2S. a cart-load (timber for the needful
See also:building and reparation of houses, ships or mills only excepted), but between the first
See also:day of
See also:April and last day of
See also:June, not even for the
See also:king's use, out of
See also:time, except for building or repairing his
See also:Majesty's houses or ships." In giving testimony before a
See also:committee of the
See also:House of
See also:Commons in
See also:March 1771, Mr
See also:Barnard of
See also:Deptford expressed it as his opinion that to secure durable timber for
See also:shipbuilding, trees should be barked in
See also:spring and not felled till the succeeding winter . In France, so long ago as 1669, a royal decree limited the felling of timber from the 1st of
See also:October to the 15th of April; and, in an
See also:order issued to the commissioners of forests,
See also:Napoleon I. directed that the felling of
See also:naval timber should take place only from
See also:November 1 to March 15, and during the decrease of the
See also:moon, on account of the rapid decay of timber, through the
See also:fermentation of its sap, if cut at other seasons . The burying of wood in
See also:water, which dissolves out or alters its putrescible constituents, has long been practised as a means of seasoning . The old " Resistance "
See also:frigate, which went down in Malta
See also:harbour, remained under water for some months, and on being raised was found to be entirely freed from the dry rot fungus that had previously covered her; similarly, in the
See also:ship " Eden," the progress of rot was completely arrested by 18 months' submergence in Plymouth Sound, so that after remaining a
See also:year at home in excellent
See also:condition she was sent out to the East Indies . It was an ancient practice in England to place timber for
See also:thrashing-floors and oak planks for wainscotting in
See also:running water to season them .
See also:Whale and other oils have been recommended for the preservation of wood; and in 1737 a patent for the employment of hot oil was taken out by a Mr Emerson .
See also:modern processes of preserving timber see TIMBER .
NERO1 CLAUDIUS DRUSUS (38–9 B.C.)
DRYADES, or HAMADRYADES
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