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ve or basic, in the latter by a negative or acid, element or radical. -- Neutral tint, a bluish gray pigment, used in water colors, made by mixing indigo or other blue some warm color. the shades vary greatly. -- Neutral vowel, the vowel element having an obscure and indefinite quality, such as is commonly taken by t…

ounded seed, rather smaller than a nutmeg, having a hard smooth shell, and a yellowish or bluish color. The seeds grow in the prickly pods of tropical, woody climbers of the genus Cæsalpinia. C. Bonduc has yellowish seeds; C.Bonducella, bluish gray. [Spelt also neckar nut, nickar nut.]

eck deep blue, rump and under parts bright red, back and wings golden green, and the tail bluish purple. Called also painted finch.

up, found native as an alloy in platinum ore, and in iridosmine. It is a hard, infusible, bluish or grayish white metal, and the heaviest substance known. Its tetroxide is used in histological experiments to stain tissues. Symbol Os. Atomic weight 191.1. Specific gravity 22.477.

, remarkable for its wide distribution over all the continents. The adult plumage is dark bluish ash on the back, nearly black on the head and cheeks, white beneath, barred with black below the throat. Called also peregrine hawk, duck hawk, game hawk, and great-footed hawk.

rocarbon, C14H10, found in coal tar, and obtained as a white crystalline substance with a bluish fluorescence.

A genus including certain comma-shaped marine bacteria which emit bluish or greenish phosphorescence. Also, any microörganism of this group.

A bluish green coloring matter of certain algæ.

A California sciænoid food fish (Seriphys politus). The back is bluish, and the sides and belly bright silvery. Called also kingfish.

l band and the outer edge of the wing quills are deep blue, and the central tail feathers bluish green. -- Rock pigeon (Zoöl.), the wild pigeon (Columba livia) Of Europe and Asia, from which the domestic pigeon was derived. See Illust. under Pigeon. -- Rock pipit. (Zoöl.) See the Note under Pipit. -- Rock plover. (Z…

ysis ignita) which has the under side of the abdomen bright red, and the other parts deep bluish green with a metallic luster. The larva is parasitic in the nests of other wasps and of bees.

-- Rudder fish. (Zoöl.) (a) The pilot fish. (b) The amber fish (Seriola zonata), which is bluish having six broad black bands. (c) A plain greenish black American fish (Leirus perciformis); -- called also black rudder fish, logfish, and barrel fish. The name is also applied to other fishes which follow vessels. -- Rud…

ed to the owls and turbits, having the body white, the shoulders tricolored, and the tail bluish black with a large white spot on each feather.

A cancerous tumor which is hard, translucent, of a gray or bluish color, and emits a creaking sound when incised. [Sometimes incorrectly written schirrus; written also skirrhus.]

ropristis, atrarius) which abounds on the Atlantic coast of the United States. It is dark bluish, with black bands, and more or less varied with small white spots and blotches. Called also, locally, blue bass, black sea bass, blackfish, bluefish, and black perch. (b) A California food fish (Cynoscion nobile); -- called…

Of a beautiful bluish green color, like sea water on soundings.

A dark bluish gray color.

. The blue, or blue-winged, snow goose (C. coerulescens) is varied with grayish brown and bluish gray, with the wing quills black and the head and upper part of the neck white. Called also white head, white-headed goose, and bald brant. -- Snow leopard (Zool.), the ounce. -- Snow line, lowest limit of perpetual snow.…

(Zoöl.), a large geometrid moth (Euschema militaris), having the wings bright yellow with bluish black lines and spots. -- Soldier orchis (Bot.), a kind of orchis (Orchis militaris).

morphous substance, C14H10O9, having an astringent taste, and forming with ferric salts a bluish-black compound, which is the basis of common ink. Called also tannin, and gallotannic acid.