gum, range of, 61

Tupelo gum, uses of, 61

Types of dry kilns, different, 185

Types of kiln doors, different, 231

Types, kilns of different, 196

Umbrella Tree, 67

Underlying principles of kiln-drying, 166

Unseasoned products in the rough, 109

Unseasoned wood, difference between seasoned and, 121

Unsolved problems in kiln-drying, 143

Uses of the humidity diagram, 237

Uses of tupelo gum, 61

Vacuum, Drying under Pressure and, 146

Valparaiso oak, 76

Virgilia, 85

Wahoo, 51, 82

Walnut, 45, 82

Walnut, black, 44, 82

Walnut, circassian, 60

Walnut, satin, 54

Walnut, white, 45, 83

Water beech, 44, 80

Water by dry wood, absorption of, 124

Water elm, 50

Water in wood, 114

Water in wood, distribution of, 114

Water in wood, local distribution of, 114

Water in wood, seasonal distribution of, 115

Water lost in drying 100 lb. of green wood in the kiln, pounds of, 179

Water, manner of evaporation of, 123

Water maple, 69

Water oak, 73

Weeping willow, 84

Weighing with scalometer, 248

Weight, and figure in wood, grain, color, odor, 86

Weight of kiln-dried wood of different species, 95

Weight of wood, 91

Western larch, 22

Western pine, 25

Western white oak, 71

Western white pine, 25

Western yellow pine, 25

West, red cedar of the, 17

Weymouth pine, 23

What seasoning is, 119

White ash, 37

White basswood, 39

White beech, 40

White birch, 42, 43

White cedar, 17, 18

White cypress, 19

White elm, 50

White fir, 20, 21

White heart hickory, 64

White mahogany, 45

White maple, 69

White oak, 71, 72

White oak, swamp, 72, 73

White oak, western, 71

White pine, 23, 24

White pine, California, 25

White pine, western, 25

White poplar, 79, 81

White spruce, 28

White walnut, 45, 83

White willow, 83

Whitewood, 39, 81, 83

Wild apple, 49

Wild cherry, 47

Wild red cherry, 47

Willow, 83

Willow, almond-leaf, 84

Willow, bebb, 84

Willow, black, 83

Willow, blue, 83

Willow, crack, 84

Willow, glaucous, 84

Willow, long-leaf, 84

Willow, oak, 72

Willow, perch, 84

Willow, pussy, 84

Willow, sand bar, 84

Willow, shining, 84

Willow, weeping, 84

Willow, white, 83

Willow, yellow, 83

Winged elm, 51

Wintergreen birch, 41

Wood, absorption of water by dry, 124

Wood, beaver, 67

Wood, canary, 81

Wood, characteristics and properties of, 1

Wood, color and