. Wood; a manual of the natural history and industrial applications of the timbers of commerce. Wood; Timber. WOOD OF BROAD-LEAVED TREES 27 that we find the greatest complexity and variety. This may con- tain from three to five of the following six kinds of elements : tracheids, vessels, woody fibres, fibrous cells with thick or with thin walls, and wood-parenchyma. The trachece or true vessels vary considerably in transverse diameter, some of them being the widest pores seen in a transverse section of wood and being some-. .-t^ ft, -^ ^ o ft J ® SO to ^'^ ^ 2 ? 3 â ^ y:H -tj ^ :d .2 ^ rd 13
. Wood; a manual of the natural history and industrial applications of the timbers of commerce. Wood; Timber. WOOD OF BROAD-LEAVED TREES 27 that we find the greatest complexity and variety. This may con- tain from three to five of the following six kinds of elements : tracheids, vessels, woody fibres, fibrous cells with thick or with thin walls, and wood-parenchyma. The trachece or true vessels vary considerably in transverse diameter, some of them being the widest pores seen in a transverse section of wood and being some-. .-t^ ft, -^ ^ o ft J ® SO to ^'^ ^ 2 ? 3 â ^ y:H -tj ^ :d .2 ^ rd 13 TJ â hc3 5> IP's ^ ce 05 O . 2 S'"' c3 «^ El^ 5 51 O C r?^ rS j3 a> cr3r=i -icsa^pTrsr ^* times specially conspicuous in the spring-wood. Some of them, in young wood, have net-like thickening, but most of them have bordered pits, as have also the tracheids. The chief differences in fact between these two kinds of elements are the smaller diameter and lesser length of the tracheids. As they are each formed from a single cambium-cell, these tracheids have no transverse divisions ;. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Boulger, George Simonds, 1853-1922. London, E. Arnold
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecttimb, booksubjectwood
