Part 21

Tennyson, quoted, 24.

"The Secrets of Nature in Forms and Fertilization of Flowers Discovered," Sprengel's work, 113.

Thevenot, concerning the thrift of insects, 152.

Tiger-beetle (Cicindela), 68.

Toads, 6.

Toad-spit, 80.

Tree-hopper, 93.

Venus's-slipper (Cypripedium acaule), 205.

Vireo, abandons its nest, 45.

Wasps: --Wren, 10; microscopic, 45; tiny black, 69; digger, 72, 162; orange-spotted, 79; brown; mud, 161.

"Waxwork" bittersweet (Celastrus scandens), 88.

Welcome of the flowers: --The function of the stamen, 106; difference in cells, 107; condition of the flower, 108; physiological features; recognition of sex in flowers, 109; exchange of courtesies; each flower a law unto itself, 117; action of "jack-in-the-pulpit"; cypripedium and aristolochias; peculiarity of the sage, 119; queer stamens; nature's arrangement, 121; cross-fertilization insured, 122; showers of laurel pollen; curious construction of flower, 124; singular greeting to the bee, 126; remarkable interior arrangement of the Andromeda, 128; hidden anthers of the blue-flag, 129; intercommunication and reciprocity, 135.

Wild geranium (G. sylvaticum), 112.

Wild volapuek, 4.

Wilson, cow-bird's eggs, 33.

Wind as a fertilizing agent, 154.

White, Gilbert, cuckoo's eggs, 32; rich localities, 58.

Wood, Alphonso: --On tubercles, 203; on embarrassed bees, 235.

Woodchucks, 5.

Wren-wasp (Odynerus flavipes): --A cumbersome prize, 10; selecting a home; way stations; a second instalment, 11; very familiar, 12; a well-stocked home, 13; impotent anaesthetic, 14; manner of catching her prey; a hypodermic injection, 15; food on storage; closing the cell after depositing egg, 16; living food; preference for ready-made houses; resemblance to the yellow-jacket, 17.

Zenarchus, concerning the cicada, 96.

THE END

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