Part 23

Nature, check to rapid increase of, 195.

Nelumbo, water-lily, 45.

Nettle (Celtis), 154.

Nettle-leaf tent-builders, laying the egg, 155; contents of the curled leaf, 156; gray and spine-covered, 156; rapid change of home, 157; another specimen of different color, stingless, 158; size of full-grown specimen; a surprise; preparing for the transformation, 159; an ever-interesting revelation; quaint golden ear-drops, 160; an astonishing trick, 161.

New England farmers, 65.

Niagara Suspension-bridge, manner of laying, 105; identical with that of the spider, 106.

Noctiluca, marine phosphorescent animalculae, 21.

Noisy wigglers, 76.

Nymphaea, water-lily, 45.

Oak-apple, 43.

October rowen-fields, 116.

Odor of woods, 131.

Oil beetle. See Beetles.

Old rose, 73.

Orb weavers, 120.

Orchard oriole, 172.

Osmoderma scabei, perfumed beetle, 134.

Ovid quoted, 93.

Pansies (Viola tricolor):--Great variety of color, 46; trickery of florists; aniline bath, 47; a chemical experiment; astonishing color, 48; ammonia as an agent; coloring an entire plant emerald green, 50; results from the fumes of sulphur matches, 52.

Passion-flower, 189.

Passion-vine, 186.

Perfumed beetle (Osmoderma scabei), curious odor of, 133; suggesting Russia-leather; home on the maple-tree; sipping the sap; easily startled, 134.

Pink, 205.

Plant-louse of the apple-tree, 236.

Pliny, 64, 114, 116, 252.

Pollen bearers, 30.

Polyphemus. See Moths.

Polyporus, 144.