s laid
either direct on the object, or with but small elevation above it, the
limit on land being 10 deg., and afloat still less. It is the most telling
under ordinary circumstances, and includes all other varieties, with the
exception of vertical fire, which has elevations of from 30 deg. and
upwards; and, according to some few, curved fire, an intermediate kind,
of limited application.

HORIZONTAL PARALLAX. _See_ PARALLAX.

HORIZONTAL PLAN. In ship-building, the draught of a proposed ship,
showing the whole as if seen from above.

HORIZONTAL RIBBAND LINES. A term given by shipwrights to those lines, or
occult ribbands, by which the cant-timbers are laid off, and truly
bevelled.

HORN. The arm of a cleat or kevel.

HORN-CARD. Transparent graduated horn-plates to use on charts, either as
protractors or for meteorological purposes, to represent the direction
of the wind in a cyclone.

HORNED ANGLE. That which is made by a right line, whether tangent or
secant, with the circumference of a circle.

HORNEL. A northern term for the largest species of sand-launce or
sand-eel.

HORN-FISC. Anglo-Saxon for the sword-fish.

HORN-FISTED. Having hands inured to hauling ropes.

HORNING. In naval architecture, is the placing or proving anything to
stand square from the middle line of the ship, by setting an equal
distance thereon.

HORN-KECK. An old term for the _green-back_ fish.

HORNOTINAE. Ancient vessels which were built in a year.

HORNS. The points of the jaws of the booms. Also, the outer ends of the
cross-trees. Also, two extreme points of land inclosing a bay.

HORNS OF THE MOON. The extremities of the lunar crescent, in which form
she is said to be horned.

HORNS OF THE RUDDER. _See_ RUDDER-HORN.

HORNS OF THE TILLER. The pins at the extremity.

HORN-WORK. In fortification, a form of outwork having for its head a
bastioned front, and for its sides two long straight faces, which are
flanked by the guns of the body of the place. Sometimes it is a detached
outwork.

HOROLOGIUM UNIVERSALE. An old brass nautical instrument, one of which
was supplied to Martin Frobisher, at an expense of L2, 6_s._ 8_d._, when
fitting out on his first voyage for the discovery of a north-west
passage.

HORS DE COMBAT. A term adopted from the French, signifying so far
disabled as to be incapable of taking farther share in the action.

HORSE. A foot-rope reaching from the opposite quarter of a yard to its
arms or shoulder