Modern cabinet work, furniture & fitments; an account of the theory & practice in the production of all kinds of cabinet work & furniture with chapters on the growth and progress of design and construction; illustrated by over 1000 practical workshop drawings, photographs & original designs . , walnut, mahogany, &c, are broadleaf trees, and produce timber which is largely made up of real vessels or pores,and in a general way they are termed hardwoods, although some of them, suchas whitewood, willow, and poplar, are comparatively soft. They are also decidu-ous with exceptions in the holm oak, h
Modern cabinet work, furniture & fitments; an account of the theory & practice in the production of all kinds of cabinet work & furniture with chapters on the growth and progress of design and construction; illustrated by over 1000 practical workshop drawings, photographs & original designs . , walnut, mahogany, &c, are broadleaf trees, and produce timber which is largely made up of real vessels or pores,and in a general way they are termed hardwoods, although some of them, suchas whitewood, willow, and poplar, are comparatively soft. They are also decidu-ous with exceptions in the holm oak, holly, &c. On the other hand needleleaf trees produce timber without such pores, except in small quantities nearthe heart, the woody substance being chiefly composed of what are known as tracheites, and parenchyma, or tissue. The difference in the two structuresis easily recognised by examining the end grains of a piece of oak and yellowdeal. The pores are plainly visible in the oak, whilst the deal appears to bemade up of spongy fibres. These needle leaf trees are the conifers, such asthe pines, firs, yews, cedars, and larch, and with some exceptions (the larch isone) are evergreen. They are called the soft and resinous woods. Other 326 ENGLISH, FOREIGN, AND COLONIAL WOODS 327. 1. Section of Half a Tree, showingHeart, Sap, Rays, and Rings. points of difference may be noted by reference to the diagram, f. 1, whichshows the section of a hardwood tree slightly exaggerated for purposesof illustration. The centre spot represents thepith, heart, or medulla ; the rings shown lightand dark are the annual rings, the light oneknown as the spring, and the dark the autumn ring. As a rule they are the resultof one years growth, formed by the upward ordownward movement of the sap and wood-forming substances. They vary in width indifferent trees. In the conifers they are, as arule, strongly marked, and also in the oak (seef. 2, a section of English oak full size); inmahogany and walnut a litt
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Keywords: ., bookcentury1900, bookdecade1920, bookpublisherphila, bookyear1922
