Part 20

Coral, gray, 73.

Cow-spittle, 84, 86.

Crickets, 71.

Cross-fertilization of flowers, 30, 167, 208, 211, 229.

Cuban belle's toilet, 21.

Culpepper, Dr., quoted, 154.

Cyanic, flowers with all shades of blue and red without yellow, 45.

Cynips seminator, Cynips rosae, gall-flies, 40.

Dahlia, blue, 45.

Daisy, pesky white weed, almost identical with the marguerite, 25; a marvel of a flower, 28, 205, 211.

Dandelion. Seeds used for birds'-nests, 173; mutilation of, 174; a week of retirement, 175; flight of the seed-bed, 176; the burglar discovered, 177, 211.

Darwin, 202, 209, 224.

Darwin flowers, 166, 167, 168.

De Candolle. Color limitations in flowers, 45, 202.

Deer-mouse, 151.

Desmodium, 223.

"Digger-wasps," sand-hornets, 252.

Dungeons of death, 54.

Egyptian history, 53.

Egyptian yellow lotus, 45.

Evening primrose (OEnothera biennis), 85; luminous blossoms of, 163; daylight mystery; seeds, pods, and caterpillars, 164; curious secret; two buds, 165; primrose blooms for moths, 168; blighted buds, 169; a poor recompense, 170.

Fairy sponges, the growth of; rich colors of sweetbrier sponge, 38, 42; contents of the sponge, 42.

False scorpions (Pedipalpi), 181; among old books and papers; born rovers, 182.

Figwort (Scrophularia), tall and spindling, purplish-olive blossoms; odor of; food for wasps, 28; fertilized by wasps; bud open in the morning; flowers change from day to day, 30; growth of the ovary, 32.

Flies:--gall, 40; lace-wing, 122; gold-banded, 129; house, 178; laphria, 182; ichneumon, 196; parasitic, 200; harvest, 87, 246.

Floundering beetle, color of, 1; funny characteristics of; leaking habits, 2; playing possum, 3; feats of; diminutive size when young; golden-yellow case, 4; number of joints, 5; a snug resting-place; first outing, 6; in the bee hotel; transformation, 8; in the mummy-case; change of diet, 10.

Fly-fungus, 184.

Flying-machine, toy, 117.