=To Dismount Completely.=--1. Turn the barrels until the arrow on the rear assembling-disk marked "Dismount" is opposite the arrow on the right upper quarter of breech-piece. 2. Enter a punch in the hole in the breech-piece and back out the keep-bolt of the pin-wheel. 3. Unscrew and take out the pin-wheel. 4. Unscrew the four bolts which secure the frame to the breech-piece. 5. Slip the breech-piece off to the rear. 6. Remove the group of barrels from the frame. =Mounting= is done in the inverse order. Start the pin-wheel on before pushing the breech-piece entirely into place. In driving in the keep-pin of the pin-wheel be careful that it is close home so as not to grind in the journal. Also, before dropping the keep-pin in turn the barrels until the arrow marked "Mount" is opposite the one on the breech-piece. CARE AND CLEANING REQUIRED. Apply the rules given for mountain-artillery, page 4. In scrubbing out the barrels it is always best to turn the one to be scrubbed to the extractor-hole, as this position gives the most room for thorough work and the water does not slop into the breech-piece. Elevate the gun slightly and put the water-bucket under the extractor-hole. When cleaned and mounted, pour a little oil in the oil-holes and revolve the mechanism a few times to spread it on the bearings. AMMUNITION. The ammunition is similar to that used in breech-loading small arms, and consists of the projectile, to the base of which is crimped a metallic cartridge-case containing the powder-charge, and being provided with a percussion-cap for centre-fire. The charge of powder is loaded into the brass case and shaken down, and on the top of it is placed a felt lubricating-wad, which leaves sufficient end to the case to allow it to be crimped to the base of the projectile. The projectiles consist of cast-iron shell, steel shell, and canister. The nose of the first is truncated to give a seat for the nose fuze; that of the second comes to a sharp point, and its fuze is in the base. The canister consists of a thin drawn brass case, almost hemispherical at the head, filled with hardened lead balls packed in sawdust. Light. Heavy. Weight of shell, empty Oz. 14.4 16 " " " loaded " 16 19 Bursting-charge " 0.7 0.8 Number of fragments 15 15 Weight of canister Lbs. 1.25 1.25 Number of bullets 28 28 Weight of cartridge-case, empty Oz. 3 3.4 " " powder-charge " 2.8 3.8 Total weight of cartridge complete, shell Lbs. 1.4 1.7 " " " " " case " 1.6 1.75 THE CARRIAGE.