Trout streams, beauty and purity of, 39, 40. Turkey, domestic, 86. Turkey, wild (_Meleagris gallopavo_), 101. Turtle, land. _See_ Terrapin. Turtle, spotted, 196. Turtle-head. _See_ Chelone. Turtles, 163, 196, 210. Vervain, 29. Violet, Canada, 20. Violet, common, 20. Violet, dog's-tooth. _See_ Adder's-tongue. Violet, small white, 20. Violet, spurred, 20. Vireo (_Vireo_ sp.), a brood of young fed by a bluebird, 313, 314. Vireo, red-eyed (_Vireo olivaceus_), 289, 297; notes of, 297; nest and eggs of, 8, 290, 291. Virginia, journey through, 221, 222. Warbler, black-poll (_Dendroica striata_), on Slide Mountain, 46; song of, 46. Warbler, hedge, song of, 308. Wasps, stingless, 269. Water-lily. _See_ Pond-lily. Waxwing, cedar. _See_ Cedar-bird. Weasel (_Putorius_ sp.), and his den, 111-117; pursuing a chipmunk, 152-154, 309. Wheat, chess grass and, 262, 263. Whip-poor-will (_Antrostomus vociferus_), 71, 72; protective coloring of, 261; eggs of, 71, 261. White, Gilbert, 266. Whitman, Walt, quotations from, 213, 214, 247. Wild animal, a mythical, 174, 175. Willow-herb, 16. Witch-hazel, 27. Wittenberg, the, 35, 38, 56, 57. Wolf, gray (_Canis lupus_), 102, 103. Wolf, prairie (_Canis latrans_), 102. Woman, observations of an invalid, 87-109. Women, about the best lovers of nature, 88. Woodchuck (_Arctomys monax_), friendly calls, 179; mother and young, 180, 181; a pet, 181, 182. Woodcock, American (_Philohela minor_), 219, 220. Woodland Valley, 37. Woodpecker, downy (_Dryobates pubescens_), 66; drumming of, 83, 145, 166; winter retreats of, 271-273; attacked by a bluebird, 272. Woodpecker, hairy (_Dryobates villosus_), 273. Woodpecker, red-headed (_Melanerpes erythrocephalus_), 238. Woodpecker, yellow-bellied (_Sphyrapicus varius_), sapsucking habits of, 258, 259. Woodpeckers, eggs of, 64, 65; drumming of, 83-85; courtship of, 83-85. Woods, traveling through pathless, 50, 51; in Kentucky, 227-231. Wordsworth, William, his love of nature, 204-207; quotations from, 19, 204, 205. Wren, Carolina (_Thryothorus ludovicianus_), on the Hudson, 300-302; a performer, 301; song of, 301, 302; nest of, 68. Wren, European, nest of, 68. Wren, house (_Troglodytes aëdon_), occupying orioles' nests, 65, 66; war with a bluebird, 66-68, 92; feeding a brood of young robins, 314, 315; overflowing with life and activity, 315; "cock-nests" built by the male, 315; notes of, 67, 68, 314; nest and eggs of, 65, 66, 68, 70, 92, 314, 315.