Water content, [55], [73], [74]
effect of, [06], [08], [17], [33], [75]-84
Wear, resistance to ([see Abrasion])
Weight, relation to mechanical properties, [54]-55
Willow, [44]
black, [13]
Work ([see Resilience]), [30], [54]
Xylotrya, [67]
Yellow Poplar, [44]