Andromeda-bell, its welcome to the bee, 221, 222. Aniline bath, 47. Aphides, 125, 126; pest of the rose-garden; plants and trees, 126; sucking the sap, 127; disappearance of a swarm, 128; all females; end of season males appear; wonderful multiplication of, 233, 236. Aphis lion (_Hemorobida_), 128, 129. _Aphrophora_, "spume-bearer," 89. Apple-trees bearing pumpkins and squashes, 192. _Aquilegia canadensis_, columbine, 46. Arachne, 106. Archippus. See Butterflies. _Argiope riparia_, ballooning or flying spiders, 120. Artists as interpreters of the beauty of the commonplace, 26. Asters, 110. _Attacus prometheus_, 75. Aurelius, 161. Balloon, the true, 118. Ballooning spiders (_Argiope riparia_), annual picnic of, 114; shooting of webs, 115; sailing out of sight; sending out broad bands from their spinnerets, 117; skilful handling, 118; making the balloon; the ascension; manner of alighting, 119. Baltimore oriole, 172. Banquet of beetles, 134. Barberry blossoms, shrinking hearts; strange manners, 224; an unsuspecting agent, 227. Bedegnar, sponge-gall, 43. Bees:-- bumble, 6, 91; honey, 7; yellow-jacket, 91; _Andrena_, 222. Beetles:-- floundering, 1; tiger (_Cicindelidæ_), oil, 2; snapping (_Elater_), 20; perfumed (_Osmoderma scabei_), 133; blue oil, 239. Bellworts, 44. Bigelow, Hosea, quoted, 224. Billings, Josh, quoted, 92, 124. Birds'-nests, materials of:-- milkweed bark, toad-skins, and snake-skins, 171, 172; twine and horse-hair, caterpillar-skins, 172; wool, dandelion seeds, 173; gray lichens and seeds, 177. Black-paper hornet, his bad reputation, 94; a tempting target; results of an attack on his house, 96; making themselves promiscuous; the stoical bachelor, 97; his discomfiture, 98; antics explained; his hiding-place revealed, 100; favorite hunting-ground, 101; occasional big game; life of; manner of laying eggs; several broods in a season, 102; number of tiers in a nest; winter the best time to examine nests, 103. Black snake, 85. Blossom etiquette, 221, 222. Blue carnation, 46. Blue dahlia, 45. Blue oil beetle, 239. Blue pansies, 46. Blue rose, 45, 46. Blue tulip, 45. Bluets, _Houstonia_, 24, 208, 209. Boletus, 142. Bridge-building spiders, 104. Brooklyn Bridge, 104; "carrier" or "traveller" should have been called "spider," 105; Engineer Farrington crossing, 110. Brown screech-owl, 151. Browning, Robert, quoted, 26. "Bull's-eye" caterpillar, 156. Bumble-bee, 6, 91. Butterflies asleep at night, 168.