the Circulars of February 24th
and July 6th, 1864, be used in this gun.

411. EXTERIOR DIMENSIONS OF BOXES CONTAINING PARROTT'S PROJECTILES.

--------------------------------+---------+---------+---------
| LONG. | WIDE. | HIGH.
--------------------------------+---------+---------+---------
| Inches. | Inches. | Inches.
100-pounder, short 1 | 18-3/4 | 8-3/4 | 8-3/4
60-pounder, | | |
30-pounder, containing 10 | 25-1/4 | 11 | 15-3/4
20-pounder, containing 10 | 25-1/4 | 10-1/2 | 13
--------------------------------+---------+---------+---------

412. HOTCHKISS'S PROJECTILE FOR 20-POUNDER AND 12-POUNDER HOWITZER.

--------------------------------+---------+---------+---------
20-pounder, containing 5 | 24 | 12 | 6-1/2
12-pounder, containing 10 | 20 | 9 | 9
--------------------------------+---------+---------+---------

413. SCHENKL'S PROJECTILE FOR 20-POUNDER AND 12-POUNDER HOWITZER.

--------------------------------+---------+---------+---------
20-pounder, containing 5 | 24 | 14 | 7
12-pounder, containing 10 | 22-1/4 | 9-1/2 | 11-1/2
--------------------------------+---------+---------+---------

414. J.A.D. PROJECTILE FOR 20-POUNDER AND 12-POUNDER HOWITZER.

--------------------------------+---------+---------+---------
20-pounder, containing 3 | 15 | 12-1/4 | 7
12-pounder, containing 5 | 19 | 10-1/4 | 6
--------------------------------+---------+---------+---------

FOOTNOTES:

[41] Owing to the recent accidents which have taken place with these guns,
the 150-pounder has been withdrawn from service, and the charge of the
100-pounder provisionally reduced to eight (8) lbs. of Rifle powder, and
the short shell of eighty (80) lbs. only is to be used.

[42] The Schenkl, Hotchkiss, and some other projectiles, have a small
quantity of grease attached.

CHAPTER VI.

MONITORS.

The diagram represents the interior arrangement of the turret of the
Monitors for the long and short XV-inch guns.

415. NOMENCLATURE.

A. Ammunition-scuttle.
B. Starting-bar for revolving turret and training gun.
C. Shaft on which turret revolves.
D. Travelling-bar on which moves the shell-whip.
E. Position of Engineer stationed at bar to revolve turret and