em from any
loose powder.

199. One fire-tub, nearly filled with water, is to be placed on the
deck, alongside the bottom of each chute for returning empty boxes.
The top of this tub is to be provided with a stout hoop to ship and
unship, with a grating of stout copper wire, the meshes of which are
to be made small enough to prevent the passing-box from falling into
the water, in case of slipping from the man's hand while being struck
over the tub.

SHOT AND SHELL.

200. Shot and shell are to be passed up by hand, or whipped up, by the
most convenient hatchways. The hands stationed below at the lockers
are to work the whips, each of which, being fitted with a toggle, will
indicate when the projectiles are hoisted high enough. In case a
shot-locker should be somewhat removed from the hatchway, up which the
shot are to be passed or whipped, the shot may be speedily conveyed
over the distance by means of a wooden trough fitted for the purpose.

HATCHWAY FOR THE WOUNDED.

201. One hatchway, or portion of a hatchway, and that as nearly
amidships as possible, is to be reserved for lowering the wounded
below, and to be properly provided with a cot or cots, having a whip
to each.

[Illustration: NAVAL TRUCK CARRIAGE D. Van Nostrand Publisher. Julius
Bien, pr.]

NAVAL GUN-CARRIAGES.

202. All gun-carriages and their equipments are to be made in
conformity with directions from the Bureau of Ordnance.

NOMENCLATURE OF ORDINARY NAVAL TRUCK-CARRIAGE.

WOODEN PARTS.

_Carriage._

A. Brackets of large truck-carriages are made each of two pieces,
joined by a jog _a_, and dowelled. The remaining parts of the
brackets are the trunnion-holes _b_, steps _c_, quarter-rounds
_d_, and arch _e_.
B. Transom, let into brackets.
C. Breast-piece, in two parts--the inner part fixed, by two bolts,
into transom; the outer part movable, connected by hinges.
D. Front and rear axletrees, consisting each of square body _f_,
and arms _g_, jogged into brackets.
E. Front and rear trucks.
F. Dumb trucks.
G. Bed and stool.
H. Quoin.

_Implements._

I. Handspikes.
K. Chocking-quoin.

METAL PARTS.

_Carriage._

1. Two cap-squares.
2. Four cap-square bolts and two keys and chains.
3. Two bracket-bolts.
4. Two rear axletree-bolts.
5. Two side-tackle eye-bolts.
6. One train-tackle eye-bolt.
7. One transporting eye-bolt.
8.