Sparrow, chipping _or_ social, nest, 53, 54. Sparrow, song, song flight, 37; nesting, 54; singing, 85, 86. Sparrow, vesper, nesting, 80-84; its names, 82; appearance and habits, 82, 83; courted by a skylark, 83. Species, origin of, an insoluble problem, 167-69, 199. Spider, trap-door, 132-43. Spiders, 12, 23; genius of, 136. Spider-webs, rainbows in, 13, 14. Squirrel, gray, caught by a weasel, 178. Squirrel, red, chased by a weasel, 178. Strawberry-vines, wild, 212-14. Struggle, 203, 204. Sunrise, 197, 198. Survival of the fit, 201, 203. Swallow, bank, 78. Swallow, barn, 71; parental anxiety, 76, 77; notes, 76, 77; pleasing qualities, 77, 78. Swallow, cliff, 77. Swallow, tree, 78. Swallows, feeding, 15, 16; hibernation, 78. Swift, chimney, 36. Sycamore, autumn color, 3. Taft, William Howard, 105. Telepathy, 155. Thistle, Canada, 202. Thorns, the use of, 143-48. Thrasher, brown, 67, 68. Thrush, Alaska hermit, 129. Thrush, hermit, song, 87. Thrush, olive-backed, 30. Thrush, Wilson's. _See_ Veery. Thrush, wood, 30, 64; manners, 67, 68. Tides, the, 169, 170, 193, 194. Titlark. _See_ Pipit. Trees, leaves, 1-3; mechanism of growth, 4-8; roots and rootlets, 4-6; what man has in common with, 9, 10. Tree-toad, 71. Turnip, Indian, 196. Turtle-dove. _See_ Dove, mourning. Uniontown, Pa., 113. Universe. _See_ Cosmos. Van Dyke, John C., on desert plants, 145, 146. Veery, nesting, 97, 98. Vireo, nest, young, and mother, 99, 100. Vireo, red-eyed, 86, 100. Vireo, yellow-throated, 30. Vital principle, 8, 9. Warbler, Audubon's, 129. Warbler, Canada, 29. Warbler, mourning, 29, 31. Wasp, a solitary, 12, 13. Water-thrush, _or_ water accentor, 79. Waxwing, Bohemian, 21. Weasel, catching rabbits and squirrels, 177, 178; an inspirer of terror, 178, 179. Weather, prophesying the, 20-22. West Virginia, motor trip through, 114-19. Whitman, Walt, quoted, 9, 193. Wolf Creek, 117. Woodcock, flight song, 32, 37. Woodpecker, yellow-bellied, 6. Woodpeckers, flight, 37. World War, Darwinism a cause of the, 172-75. Wren, Bewick's, 103. Wren, house, 86; and nesting-box, 29. Wren, winter, nest, 79. The Riverside Press CAMBRIDGE · MASSACHUSETTS U · S · A End of the Project Gutenberg EBook of Under the Maples, by John Burroughs