The specific gravity was derived from wood dried at 100° centigrade (212
Fah.) until it ceased to lose weight.
Carya ovata (Shellbark Hickory) 0.8372
Quercus stellata (Post Oak) 0.8367
Viburnum prunifolium (Black Haw) 0.8332
Quercus lyrata (Overcup Oak) 0.8313
Ostrya virginiana (Ironwood) 0.8264
Carya alba (White Hickory) 0.8218
Carya glabra (Black Hickory) 0.8217
Cornus florida (Flowering Dogwood) 0.8153
Carya laciniosa (Big Shellbark Hickory) 0.8108
Quercus Michauxii (Cow Oak) 0.8039
Diospyros virginiana (Persimmon) 0.7908
Amelanchier canadensis (Juneberry) 0.7838
Maclura pomifera (Osage Orange) 0.7736
Quercus bicolor (Swamp White Oak) 0.7662
Carya cordiformis (Pig Hickory) 0.7552
Quercus imbricaria (Shingle Oak) 0.7529
Quercus Prinus (Chestnut Oak) 0.7499
Ulmus alata (Cork Elm) 0.7491
Quercus alba (White Oak) 0.7470
Quercus macrocarpa (Bur Oak) 0.7453
Quercus coccinea (Scarlet Oak) 0.7405
Gleditsia aquatica (Water Honey Locust) 0.7342
Robinia Pseudo-Acacia (Black Locust) 0.7333
Quercus marilandica (Black Jack Oak) 0.7324
Celtis occidentalis (Hackberry) 0.7287
Carpinus caroliniana (Water Beech) 0.7286
Ulmus Thomasi (Hickory Elm) 0.7263
Prunus americana (Wild Plum) 0.7215
Fraxinus quadrangulata (Blue Ash) 0.7184
Carya illinoensis (Pecan) 0.7180
Malus glaucescens (Crab Apple) 0.7048
Quercus velutina (Black Oak) 0.7045
Ulmus fulva (Slippery Elm) 0.6956
Quercus palustris (Pin Oak) 0.6938
Gymnocladus dioica (Coffeenut) 0.6934
Quercus falcata (Spanish Oak) 0.6928
Acer nigrum (Black Maple) 0.6915
Acer saccharum (Sugar Maple) 0.6912
Fagus grandifolia (Beech) 0.6883
Gleditsia triacanthos (Honey Locust) 0.6740
Betula lutea (Yellow Birch) 0.6553
Fraxinus americana (White Ash) 0.6543
Quercus rubra (Red Oak) 0.6540
Ulmus americana (White Elm) 0.6506
Cercis canadensis (Redbud) 0.6363
Nyssa sylvatica (Black Gum) 0.6356
Adelia acuminata (Swamp Privet) 0.6345
Fraxinus nigra (Water Ash) 0.6318
Fraxinus pennsylvanica (Red Ash) 0.6251
Larix laricina (Tamarack) 0.6236
Acer rubrum (Red Maple) 0.6178
Juglans nigra (Black Walnut) 0.6115
Betula papyrifera (Paper Birch) 0.5955
Liquidambar Styraciflua (Sweet Gum) 0.5909
Morus rubra (Red Mulberry) 0.5898
Prunus serotina (Wild Black Cherry) 0.5822
Betula nigra (River Birch) 0.5762
Betula populifolia (White Birch) 0.5760
Platanus occidentalis (Sycamore) 0.5678
Pinus virginiana (Jersey Pine) 0.5309
Acer saccharinum (Silver Maple) 0.5259
Sassafras officinale (Sassafras) 0.5042
Prunus pennsylvanica (Wild Red Cherry) 0.5023
Juniperus virginiana (Red Cedar) 0.4926
Pinus Banksiana (Gray Pine) 0.4761
Magnolia acuminata (Cucumber Tree) 0.4690
Alnus rugosa (Alder) 0.4666
Populus grandidentata (Quaking Aspen) 0.4632
Alnus incana (Tag Alder) 0.4607
Taxodium distichum (Cypress) 0.4543
Æsculus glabra (Buckeye) 0.4542
Tilia glabra (Linn) 0.4525
Castanea dentata (Chestnut) 0.4504
Salix amygdaloides (Willow) 0.4502
Catalpa bignonioides (Catalpa) 0.4474
Salix nigra (Black Willow) 0.4456
Acer Negundo (Box Elder) 0.4328
Æsculus octandra (Sweet Buckeye) 0.4274
Tilia heterophylla (White Linn) 0.4253
Tsuga canadensis (Hemlock) 0.4239
Liriodendron Tulipifera (Yellow Poplar) 0.4230
Catalpa speciosa (Catalpa) 0.4165
Populus heterophylla (Downy Cottonwood) 0.4089
Juglans cinerea (Butternut) 0.4086
Populus tremuloides (Quaking Aspen) 0.4032
Asimina triloba (Pawpaw) 0.3069
Populus deltoides (Cottonwood) 0.3889
Pinus Strobus (White Pine) 0.3854
Thuja occidentalis (Arbor-Vitæ) 0.3164
[Illustration: Plate 135.