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d land. -- Land snail (Zoöl.), any snail which lives on land, as distinguished from the aquatic snails are Pulmonifera, and belong to the Geophila; but the operculated land snails of warm countries are Dioecia, and belong to the Tænioglossa. See Geophila, and Helix. -- Land spout, a descent of cloud and water in a co…

a delicacy. It is called also peewit, dastard plover, and wype. The gray lapwing is the Squatarola cinerea.

ng. Lateral cleavage (Crystallog.), cleavage parallel to the lateral planes. -- Lateral equation (Math.), an equation of the first degree. [Obs.] -- Lateral line (Anat.), in fishes, a line of sensory organs along either side of the body, often marked by a distinct line of color. -- Lateral pressure or stress (Mech.),…

Distance north or south of the equator, measured on a meridian.

al pieces crossing each other in the manner of latticework. -- Lattice plant (Bot.), an aquatic plant of Madagascar (Ouvirandra fenestralis), whose leaves have interstices between their ribs and cross veins, so as to resemble latticework. A second species is O. Berneriana. The genus is merged in Aponogeton by recent a…

An aquatic animal, described in the book of Job, ch. xli., and mentioned on other passages of Scripture.

A curve of the fourth degree, invented by Pascal. Its polar equation is r = a cos + b.

The equator; -- usually called the line, or equinoctial line; as, to cross the line.

hroughout, except at the extremities; as, a linear leaf. Linear differential (Math.), an equation which is of the first degree, when the expression which is equated to zero is regarded as a function of the dependent variable and its differential coefficients. -- Linear equation (Math.), an equation of the first degree…

ct (Law), contract of which the whole evidence is given in writing. Bouvier. -- Literal equation (Math.), an equation in which known quantities are expressed either wholly or in part by means of letters; -- distinguished from a numerical equation.

A spiral whose polar equation is r2th = a; that is, a curve the square of whose radius vector varies inversely as the angle which the radius vector makes with a given line.

A quaternary deposit, usually consisting of a fine yellowish earth, on the banks of the Rhine and other large rivers.

The arc or portion of the equator intersected between the meridian of a given place and the meridian of some other place from which longitude is reckoned, as from Greenwich, England, or sometimes from the capital of a country, as from Washington or Paris. The longitude of a place is expressed either in degrees or in ti…

Any one of several aquatic, wed-footed, northern birds of the genus Urinator (formerly Colymbus), noted for their expertness in diving and swimming under water. The common loon, or great northern diver (Urinator imber, or Colymbus torquatus), and the red-throated loon or diver (U. septentrionalis), are the best known s…

Near, or not very distant from, the equator; as, in the low northern latitudes.

A small Brazilian monkey (Callithrix torquatus), -- called also collared teetee.

netism, the declination, inclination, and intensity. (c) See under Element. -- Magnetic equator, the line around the equatorial parts of the earth at which there is no dip, the dipping needle being horizontal. -- Magnetic field, or Field of magnetic force, any space through which magnet exerts its influence. -- Magn…

An aquatic plant of the genus Hippuris (H.vulgaris), having narrow leaves in whorls.

r romains occur in nearly all parts of the world in deposits ranging from Miocene to late Quaternary time.

root of their product. -- Mean sun, a fictitious sun supposed to move uniformly in the equator so as to be on the meridian each day at mean noon. -- Mean time, time as measured by an equable motion, as of a perfect clock, or as reckoned on the supposition that all the days of the year are of a mean or uniform length…