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Ligament; k Prosterior Aqueous Chamber between h and i; l Anterior Aqueous Chamber; m Crystalline Lens; n Vitreous Humor; o Retina; p Yellow spot; q Center of blind spot; r Artery of Retina in center of the Optic Nerve.

A metal ring or grommet, or short metallic tube, the ends of which can be bent outward and over to fasten it in place; -- used to line an eyelet hole. Eyelet hole, a hole made for an eyelet. -- Eyelet punch, a machine for punching eyelet holes and fastening eyelets, as in paper or cloth. -- Eyelet ring. See Eyelet, 2…

A stratum in crystalline rock, containing metallic sulphides. Raymond.

to one vessel coming into collision with another. -- To fall among, to come among accidentally or unexpectedly. -- To fall astern (Naut.), to move or be driven backward; to be left behind; as, a ship falls astern by the force of a current, or when outsailed by another. -- To fall away. (a) To lose flesh; to become l…

atural fats (Chem.), the group of oily substances of natural occurrence, as butter, lard, tallow, etc., as distinguished from certain fatlike substance of artificial production, as paraffin. Most natural fats are essentially mixtures of triglycerides of fatty acids.

A name given to a group of minerals, closely related in crystalline form, and all silicates of alumina with either potash, soda, lime, or, in one case, baryta. They occur in crystals and crystalline masses, vitreous in luster, and breaking rather easily in two directions at right angles to each other, or nearly so. The…

Pertaining to, or derived from, a ferricyanide. Ferricyanic acid (Chem.), a brown crystalline substance, H6(CN)12Fe2, obtained from potassium ferricyanide, and regarded as the type of the ferricyanides; -- called also hydro-ferricyanic acid, hydrogen ferricyanide, etc.

ome other base. Potassium ferricyanide (Chem.), red prussiate of potash; a dark, red, crystalline salt, K6(CN)12Fe2, consisting of the double cyanide of potassium and ferric iron. From it is derived the ferrous ferricyanate, Turnbull's blue.

g to, derived from, or designating, a ferrocyanide. ferrocyanic acid (Chem.), a white crystalline substance, H4(CN)6Fe, of strong acid properties, obtained from potassium ferrocyanide, and regarded as the type of the ferrocyanides; -- called also hydro- ferrocyanic acid, hydrogen ferrocyanide. etc.

er base. Potassium ferrocyanide (Chem.), yellow prussiate of potash; a tough, yellow, crystalline salt, K4(CN)6Fe, the starting point in the manufacture of almost all cyanogen compounds, and the basis of the ferric ferrocyanate, prussian blue. It is obtained by strongly heating together potash, scrap iron, and animal m…

A band drawn horizontally across the center of an escutcheon, and containing in breadth the third part of it; one of the nine honorable ordinaries. Fess point (Her.), the exact center of the escutcheon. See Escutcheon.

A white crystallized mineral resin from the Fichtelgebirge, Bavaria.

To meet with, or light upon, accidentally; to gain the first sight or knowledge of, as of something new, or unknown; hence, to fall in with, as a person. Searching the window for a flint, I found This paper, thus sealed up. Shak. In woods and forests thou art found. Cowley.

-- Finger sponge (Zoöl.), a sponge having finger-shaped lobes, or branches. -- Finger stall, a cover or shield for a finger. -- Finger steel, a steel instrument for whetting a currier's knife. To burn one's fingers. See under Burn. -- To have a finger in, to be concerned in. [Colloq.] -- To have at one's fingers'…

stances, as sulphur, niter, lampblack, etc., the flames of which are colored by various metallic salts, as those of antimony, strontium, barium, etc. -- Fire alarm (a) A signal given on the breaking out of a fire. (b) An apparatus for giving such an alarm. -- Fire annihilator, a machine, device, or preparation to be…

y the combustion of materials that burn in some peculiar manner, as gunpowder, sulphur, metallic filings, and various salts. The most common feature of fireworks is a paper or pasteboard tube filled with the combustible material. A number of these tubes or cases are often combined so as to make, when kindled, a great v…

A yellow crystalline substance extracted from fustet, and regarded as its essential coloring principle; -- called also fisetic acid.

ilization; to cease to flow or be fluid; to congeal; to become hard and malleable, as a metallic substance. Bacon. To fix on, to settle the opinion or resolution about; to determine regarding; as, the contracting parties have fixed on certain leading points.

hin chiplike layer of anything; a film; flock; lamina; layer; scale; as, a flake of snow, tallow, or fish. "Lottle flakes of scurf." Addison. Great flakes of ice encompassing our boat. Evelyn.

In a flat manner; evenly; horizontally; without spirit; dully; frigidly; peremptori;y; positively, plainly. "He flatly refused his aid." Sir P. Sidney. He that does the works of religion slowly, flatly, and without appetite. Jer. Taylor.