Strength of Woods, 3 Stringy-bark, 123 Sugar, 41, 42, 44, 46, 50 Sugar Tree, 42 _Swietenia_, 118 _mahagoni_, 118, 120 Sycamore, 40, 65, 66, 67 California, 67 T _Tabeuia Donnell-Smithii_, 121 Tamarack, 164, 165, 166 Western, 166 Tanbark, 2 Tangential Section, 8 Tar, 132 _Taxodium_, 177 _distichum_, 178 Teak, 115, 116 African, 115 Indian, 115 Teek, 116 _Tectona grandis_, 115, 116 Tewart, 127 Thorn, 78 _Thrinax microcarpa_, 185 _parviflora_, 185 _Thuya_, 167 _gigantea_, 168, 172 _occidentalis_, 168, 171 _plicata_, 172 Tiel, 81 Tiel-tree, 81 _Tilia_, 80 _americana_, 87 _heterophylla_, 87 Tooart, 127 Toothache Tree, 27 _Toxylon pomiferum_, 113 Tracheid, 2 _Tsuga_, 149, 162 _canadensis_, 163 _caroliniana_, 163 _heterophylla_, 163 Tree, 1 Tree Yucca, 188 Tuart, 123, 127 Tulip-tree, 80, 82 Tupelo, 101, 102 Large, 102 Swamp, 102 Turpentine, 132 U _Ulmus_, 35 _americana_, 36 _alata_, 39 _fulva_, 38 _racemosa_, 37 _pubescens_, 38 _Umbellularia californica_, 108, 109 U. S. Census Experiments, 4 U. S. Forestry Division Experiments, 4 V Veneer, 42, 47, 119 Vessel, 2 Vitæ, 171 W Wahoo, 39 Whahoo, 39 Walnut, 47, 49, 50, 52 Black, 47, 49 English, 47, 49 Persian, 47, 49 Royal, 47, 49 Shagbark, 52 Sweet, 52 White, 50 _Washingtonia filifera_, 185, 187 Watertown Arsenal Experiments, 4 Weights of Woods, 3 White Mahogany, 50 Whitewood, 80, 82, 84, 87 Wickup, 87 Wild Date, 187 Wild Olive Tree, 102 Wild Pear Tree, 101 Willow, 88, 89 Bedford, 88 Black, 89 Crack, 88 Goat, 88 Swamp, 89 Weeping, 88 White, 88 X _Xanthoxylum americana_, 27 _clava-herculis_, 27 Y Yellowbark, 22 Yellow Gum Tree, 101 Yellowwood, 106, 113, 145 Yucca, 184, 188, 189 Aloe-leaf, 188 Broadfruit, 188 Cactus, 189 Mohave, 188 Schott, 188 Tree, 188, 189 _Yucca_, 188, 189 _aloifolia_, 188 _arborescens_, 188, 189 _brevifolia_, 188, 189 _constricta_, 188 _gloriosa_, 188 _macrocarpa_, 188 _mohavensis_, 188 _treculeana_, 188 * * * * * * Transcriber's note: Original spelling and grammar have usually been retained. Each footnote has been moved from the bottom of a page to the end of its section. Illustrations have been moved from within paragraphs to nearby locations between paragraphs. Plates were originally printed on unnumbered pages and followed by a blank page. Pages 26 and 116: the name "Laslett", retained, probably refers to "Lazlett".