Part 17

Burroughs on wren-building, 17.

Butterflies: --Great yellow swallow-tail (Papilio turnus); red admiral (Pyrameis Atlanta); small yellow (Philodice); semicolon (Grapta interrogationis); comma (Vanessa comma), 153; orange; white (Aphrodite), 154; white cabbage (Pontia oleracea) 153.

Cactus, prickly-pear, its golden bower, 118.

Collinsonia, horse-balm, 136.

Caterpillars, 10, 14, 15, 62.

Celastrus scandens, bittersweet, 88.

Chamaelirium luteum, devil's-bit, 133.

Chipmonk, 6.

Cicada, victim of the sand-hornet, 77; manner of depositing its eggs; period of transformation, 97; time of hatching, 100.

Cicindela, tiger-beetle, 68.

Clover, cause of failure of crop in Australia, 117.

Cobwebs: --A dusty prize; a two year's span, 7; a mixed assortment in, 8.

Cone-flower (Rudbeckia hirta), 138; embryo seeds; arrangement of the anthers, 139.

Cow black-bird, 27; his favorite perch; old dame's theory, 28; an unwelcome intruder, 30; a prowling foe, 31.

Cow-bird: --Ravenous young parasite, 31; a clamoring lubber, 37; "Black Douglas" of the bird-home, 38; selected victims, 39; distribution of its eggs; vicious habits, 40; egg-laying intervals; demoralizing conditions; American species an improvement, 41; survival of the fittest, 42; balance of power, 44; outwitted, 51; massing for migration, 52.

"Cow-spit," 80.

Cross-fertilization, 115, 122, 178, 189, 194.

"Cuckoo-spit," 80.

Cuckoos: --Poetic misnomer, 23; outrage on maternal affection; yellow-billed; black-billed; imagination versus facts, 25; bad workmanship of nest, 26; its stammering cry, 27; manner of depositing its eggs; handling the egg with her bill, 33; short period of incubation; voracious appetite of the young; aggressive selfishness, 34; the tragedy of the nest, 35; manner of disposing of its nest-mates, 36.

Cypripedium acaule, moccasin-flower; ladies'-slipper; Venus's-slipper, 205.

Darwin: --Process of anatomical evolution, 35; theory of cross-fertilization, 105; inspired insight, 115; his disciples, 116; experiments with pollen, 126; weakness of self-fertilizing flowers, 144; triumphant revelation, 171; reaffirming Sprengel's theory, 178; a chosen interpreter, 181; dependence on insects, 183; revealing the hidden treasure, 185; foretelling the manner of cross-fertilization, 189; description of the cross-fertilization, 209; bees as implied fertilizers, 212; truth of his belief, 220.

Darning-needle, dragon-fly (Libellulidae), 156; his dainty morsel, 160.

Delpino, a follower of Darwin, 116.

Desmodium, its hospitable welcome, 118.

Devil's-bit (Chamaelirium luteum), 133.

Digger wasp, its color and wire-like waist, 72; manner of working, 74; covering its tracks; opening the tomb, 76; living food for the young grub, 77; its remarkable carrying power, 78.

Dogbane (Apocynum), its fragrant, bell-shaped flowers, 236; trapping moths, 237.

Dogwood, 5.