Index 305 Illustrations. PLATE NUMBER PLATES PAGE 1. Frontispiece; Sycamore, largest hardwood tree in U.S. 5 2. Pinus Strobus (White Pine) 21 3. Pinus Banksiana (Gray or Jack Pine) 23 4. Pinus virginiana (Scrub Pine) 24 5. Larix laricina (Tamarack) 27 6. Tsuga canadensis (Hemlock) 29 7. Taxodium distichum (Cypress) 31 8. Thuja occidentalis (Arbor-Vitæ) 33 9. Juniperus virginiana (Red Cedar) 35 10. Salix nigra (Black Willow) 37 11. Salix amygdaloides (Peach-leaved Willow) 39 12. Salix alba (White Willow) 41 13. Salix fragilis (Crack Willow) 42 14. Salix discolor (Pussy Willow) 44 15. Populus alba (Silver-leaf Poplar) 46 16. Populus heterophylla (Swamp Cottonwood) 48 17. Populus deltoides (Cottonwood) 49 18. Populus grandidentata (Large-toothed Aspen) 51 19. Populus tremuloides (Quaking Aspen) 53 20. Juglans cinerea (Butternut) 55 21. Juglans nigra (Black Walnut) 57 22. Carya illinoensis (Pecan) 60 23. Carya cordiformis (Pignut Hickory) 62 24. Carya ovata (Shellbark Hickory) 64 25. Carya laciniosa (Big Shellbark Hickory) 67 26. Carya alba (White Hickory) 69 27. Carya glabra (Black Hickory) 71 28. Carya ovalis (Small-fruited Hickory) 73 29. Carya Buckleyi var. arkansana 77 30. Carpinus caroliniana (Water Beech) 79 31. Ostrya virginiana (Ironwood) 81 32. Betula lutea (Yellow Birch) 83 33. Betula populifolia (Gray or White Birch) 86 34. Betula papyrifera (Paper or Canoe Birch) 87 35. Betula nigra (Black or Red Birch) 89 36. Alnus incana (Speckled Alder) 91 37. Alnus rugosa (Smooth Alder) 93 38. Fagus grandifolia (Beech) 95 39.