ite _all in the wind_ (_see_ ALL). It is figuratively
used for being nearly intoxicated.

INTRENCHMENT. Any work made to fortify a post against an enemy, but
usually implying a ditch or trench, with a parapet.

INUNDATIONS. In ancient Egypt officers estimated the case of sufferers
from the inundations of the Nile. The changes of property in Bengal, by
alluvion, are equally attended to. _Inundation_ is also a method of
impeding the approach of an enemy, by damming up the course of a brook
or river, so as to intercept the water, and set the neighbourhood
afloat. In Egypt the plan was diametrically opposite; for by flooding
Lake Mareotis, our gunboats were enabled greatly to annoy the French
garrison at Alexandria.

INVALID. A maimed or sick soldier or sailor.--_To invalid_ is to cause
to retire from active service from inability.

INVER. A Gaelic name, still retained in Scotland, for the month of a
river.

INVESTMENT. The first process of a siege, in taking measures to seize
all the avenues, blocking up the garrison, and preventing relief getting
into the place before the arrival of the main army with the siege-train.

INVINCIBLE. A name boastfully applied both to naval and military forces,
which have nevertheless been utterly vanquished.

INVOICE. An account from a merchant to his factor, containing the
particulars and prices of each parcel of goods in the cargo, with the
amount of the freight, duties, and other charges thereon.

INWARD. The opposite of _outward_ (which see).

INWARD CHARGES. Pilotage and other expenses incurred in entering any
port.

IODINE. A substance chiefly obtained from kelp or sea-weed, extensively
employed in medicine and the arts. Its vapour has a beautiful violet
colour.

IRIS EARS. A name applied to the shells of the Haliotis--a univalve
mollusc found clinging like limpets to rocks; very abundant in Guernsey.

IRISH HORSE. Old salt beef: hence the sailor's address to his salt
beef--

"Salt horse, salt horse, what brought you here?
You've carried turf for many a year.
From Dublin quay to Ballyack
You've carried turf upon your back," &c.

IRISH PENNANTS. Rope-yarns hanging about on the rigging. Loose
reef-points or gaskets flying about, or fag-ends of ropes.

IRON-BOUND. A coast where the shores are composed of rocks which mostly
rise perpendicularly from the sea, and have no anchorage near to them,
therefore dangerous for vessels to borrow upon.

IRON-B