By R Bruce Hoadley
Figuring out wooden is the definitive reference on wooden know-how, and is a keystone of each woodworkers library. the 1st variation (1980) bought over 128,000 copies this re-creation updates the vintage textual content with new details on new fabrics composite board, adhesives and finishes that have been built because the unique version. There also are 225 fresh color images! updated and complete revised and up to date version of a woodworking vintage which maintains to promote hundreds of thousands of copies a yr to this present day. New 4 color images is clearer and extra informative. finished every little thing you recognize approximately wooden and wooden know-how the character of wooden and its houses, the fundamentals of wookworking expertise, utilizing the woodworkers uncooked fabrics.
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Additional info for Understanding Wood REV-E
Sample text
Light-colored tissue associated with pores (paratracheal parenchyma) is said to be paratracheal vasicentric if it encircles a single pore. In some cases, the parenchyma that encircle adjacent pores merge, forming confluent parenchyma, as in the latewood of white ash. The distinction between latewood pores joined by confluent parenchyma and the wavy bands of pores (as in elm) should be noted as an identification aid. RAYS In softwoods, rays are not distinctive macroscopic features. In hardwoods their appearance is important in all three planes.
While many attack logs after harvest or sawn lumber during air-drying (and may inadvertently be included in processed material), some will attack the dry wood in finished products. In the latter case, powder-post beetles are one of the most common types. 49 • Pith flecks on t h e t a n g e n t i a l surface of this paper birch plank w e r e f o r m e d by larvae of tiny flies t h a t b u r r o w e d d o w n t h e tree stem along t h e cambial layer. (Photo by Randy O'Rourke) pores, especially in coarse-textured hardwoods such as ash, oak, and chestnut.
4 6 • This Douglas-fir 2x4 is infected w i t h w h i t e speck, a w h i t e pocket rot t h a t invades t h e h e a r t w o o d of living trees. It ceases to d e v e l o p once t h e w o o d is cut. (Photo by Randy O'Rourke) of fungi involved. 45). White rots consume both lignin and cellulose, leaving a whitish, sometimes stringy residue. Certain fungi concentrate in localized areas or pockets, as in pecky cypress, a brown pocket rot. 46). Although wood with decay is generally considered defective or worthless, decay may sometimes be a valued feature.
