By North House Folk School

ISBN-10: 1565233077

ISBN-13: 9781565233072

With its swish silhouette and unique white bark, the birch tree has been very important to humans anyplace it has grown. This booklet covers all points of the North's such a lot flexible tree—from its biology and ecology to its diversified makes use of, craft functions, and legends. the various lore published comprises birch's function as a Welsh token of affection and its mysterious reference to witches' brooms. as well as studying approximately how the wooden is utilized in baskets, footwear, and wooden coverings, readers may also make greater than 15 craft tasks from directions within the e-book, together with folded bark baskets, carved embellishes, and grew to become wood bowls.

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Extra info for Celebrating Birch: The Lore, Art, and Craft of an Ancient Tree

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Pulp fibers from compres- Bat helix, and are attached to the inner surface sion wood can usually be recognized by the of the cell wall. 1 Introduction The identifieation of wood speeies in pulp is based on the structural features of individual eells, in softwoods mostly on the cross-field pitting of the traeheids, and in hardwoods mostly on the pitting and other features of the vessel elements. The degree of sueeess in identification depends on the number of components in the fiber mixture, the species present, ete.

29). The pits are usually bordered (Panshin and de Zeeuw 1980 p. 175), but the detection of the border may sometimes be difficult. Fig. 26. Pits to longitudinal parenchyma (LP) in longitudinal series (broken lines) on the vessel wall of luglans nigra. RP = pits to ray parenchyma. 220x - Pits to libriformfibers (Chap. 5) are usually smalI, inconspicuous, and sparse. In some woods whose fibers are composed Identification Features of Hardwoods B Fig. 27. A Longitudinal parenchyma cens (arrow) in contact with the vessel element, as in the wood.

Intertracheid pitting on the radial and tangential walls as seen from the lumen side of a tracheid. RP = pits to ray parenchyma on the radial wall. Sequoia sempervirens (Jeft), Abies alba (right). 200x 42 Identification of Wood Species in Pulp commercial coniferous pulpwood, viz. Pseudotsuga, and it can be readily distinguished by this feature. Spiral thickenings are regularly present in the earlywood tracheids of Pseudotsuga, frequently present in the ray tracheids, and absent or poorly developed in the latewood tracheids (Fig.

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Celebrating Birch: The Lore, Art, and Craft of an Ancient Tree by North House Folk School


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