atory at the Washington Navy Yard. They are put up in small
packages of water-proof paper, labelled with the number contained in
the package and the date of fabrication, and stowed in tin cases
containing 350 caps each.

180. Laboratory boxes, in which these are packed, are of the following
dimensions: 11-3/4 x 9-1/4 x 7-3/8 inches, and will contain 6,300
percussion-caps each. These boxes are to be labelled, "On no account
to be placed in the magazine." Stowage is provided for them in the
general store-room.

CARTRIDGE-BAGS.

181. The material of which cartridge-bags are made is woven expressly
for the purpose, and furnished by the Bureau of Ordnance as required.
The color is white, and the calibre of the gun and the weight of the
charge must be stencilled on the bag in figures two and a half (2-1/2)
inches long. When procured of necessity elsewhere, the stuff should be
chosen of wool, entirely free from any mixture of thread or cotton,
and of sufficiently close texture to prevent the finer particles of
powder from sifting through. Wildbore, rattinet, merino, and
bombazette are named as proper materials for cartridge-bags; of these
the thinnest stuff, not twilled, but having the requisite strength and
closeness of texture, is the best.

182. MAKING CARTRIDGE-BAGS.--Cartridge-bags for cylindrical chambers
are made of a rectangle to form the cylinder, and a circular piece to
form the bottom. The flat patterns, by which the cartridge-bags for
the 8-inch and 32-pounder guns are cut, are, consequently, to be made
rectangular for the cylindrical part of the bag, and circular for the
bottom. The length of the rectangle is equal to the development of
the cylinder, together with the allowance for seam; and its width, to
the whole length of the bag before sewing, including the allowance for
seam and tie.

Special patterns are furnished for those of XV-in., XI-in., X-in.,
IX-in., 8-inch of 6,500 lbs., and 32-pounder of 4,500 lbs. shell-guns,
all of which have gomer chambers.

183. DIMENSIONS OF FLAT PATTERNS FOR CUTTING OUT CARTRIDGE-BAGS.

TO BE MADE OF PINE FOR THE 8-INCH AND 32-PDR. GUNS, AND OF METAL
PLATES FOR THE "GOMER" CHAMBERS OF OTHER GUNS.[2]

------------------------------+---------------+-----------------+
| 10-INCH, | 64-PDR. GUN |
DIMENSIONS. | OR | OF 106 CWT. |
| 130-POUNDER. | 8-IN. RIFLE. |
----