To assemble the arm: Screw the barrel into the receiver, until the mark on the top of the barrel and receiver correspond. Replace the extractor and screw, place the forward end of the guard strap in the receiver, putting in the screw. See that the main spring is in the center of the guard strap, press the rear end in until the screw will enter. Replace the hammer and breech piece, as previously described. Replace butt stock and tip. In putting on the bands of military guns, see that the letters upon them are upon the same side with the band springs. Replace the wiping rod by screwing it in. The locking lever, attached to the guard strap, serves a double purpose: one end locking the sear, or trigger, when the breech is open to receive the cartridge, which effectually prevents accidental discharge, the other end working in a groove on the under side of the breech piece, serving to close the breech piece and keep it closed in the act of firing. _The Remington Magazine Gun; Keene’s patent.—(Made by E. Remington & Sons, Ilion, N. Y.)_—To remove the breech, turn the large screw at the right hand side of the stock below the hammer to the right until the carrier (which should be in its lower position at the time) drops free of the bolt and allows it to be withdrawn. N. B. The screw referred to is cut with a left hand thread. To separate the rear end of the bolt and firing pin from the front end, bend back the hammer and twist it around to the right until the shoulder on front end of rear cap slides back in the groove in breech bolt. To reassemble it reverse the operation described. To take out the extractor, press back the extractor bolt, using the hooked end of the screw-driver for this purpose, thus releasing the rear end of the extractor, which may then be lifted out of its seat. Care should be taken not to let the extractor be thrown out by the spring when released. To remove the stock, take off the bands; take out the screw at the end of the metal tip, and remove the tip-stock by slipping it forward over the magazine tube. Unscrew the magazine tube, take out the tang screw, remove the guard bow, and take off the butt stock. The barrel should never be unscrewed except with proper appliances to avoid injuring the receiver. To assemble the parts, reverse the operations described, taking care in screwing in the magazine tube that the follower does not catch against the cut-off and interfere with replacing the tube.