DICTIONARY OF

Navivium 234 Nettles
Navivium.* Early type of submerged log on paddle-wheel principle. Way of ship acted on
lower half of paddle, causing it to rotate and actuate inboard-registering gear. Early 19th
century. Navy. The shipping of a country when considered collectively. The war vessels of a
country when considered collectively. The personnel of a navy when considered
collectively.
Neap. Applied to the tides of small amplitude occurring about the time of Moon being in
quadrature.
Neaped. Said of vessel when she grounds at high water when tides are decreasing from
spring to neap. Also applied to a vessel unable to leave a tidal harbour through decrease of
high-water height of tide.
Neap Tide. Tidal undulation that has the highest low water, and the lowest high water, in the
series. Occurs about time of quadrature of Sun and Moon.
Necklace. Open link chain secured around wooden mast of a sailing ship to take lower eyes
of futtock rigging.
Needle. Magnetised bar that provides directional property of a
magnetic compass.
Nef, Nau. Term for a ship in about 17th century, from Latin 'Nans' = ship.
Negative. Opposite of 'positive'. 2. Annul, or cancel, a signal or order.
Negative Slip. Term used when vessel's progress through the water is greater than that due
to propulsive action of propeller. May be due to indraught of a following wake.
Negligence Clause. Inserted in a contract to relieve one of the - contracting parties from
responsibility for loss due to negligence of a third party who may, or may not be, a servant
of the contracting party.
Nelson Room. Room at Lloyd's, in London, containing several valuable and important
mementoes of Admiral Lord Nelson.
Nemedri. 'North European and Mediterranean Routeing Instructions.' Contain routeing
instructions to enable vessels to avoid passing through mined areas.
Nephoscope. Instrument used for determining direction and speed of clouds.
Neptune. God of the sea in Roman mythology. Son of Saturn. 2. Eighth planet from Sun.
Discovered by Adams (England) and Leverrier (France) at about the same time. Has one
satellite. Orbital period, 164.79 years.
Neptune Log. Towed log of Cherub type, but constructed to register speeds of 18 knots and
upwards.
Nereids. Nymphs of the sea, daughters of Nereus and Doris. 2. Sea centipedes.
Ness. Projection of land into sea; headland; cape. Nets. Fishing-nets. Torpedo-nets.
Nettles. Halves of two yams twisted together to make another yarn. 2. Lengths of nettle stuff
used for attaching clews to hammocks.