_Remington No. 3 Rifle.—(Hepburn’s Patent, made by E. Remington and Sons, Ilion, N. Y.)_—Remove the upper screw on the left hand side, and the breech block may be taken out. To take out the hammer, remove the upper screw and slip the hammer forward into the breech block hole. To take out the extractor, remove the forward screw on left hand side. The lever which operates the breech block passes through the rocker sleeve with a square stud and is held in place by a set screw directly under the fore stock, which must be removed if it is ever desired to take off the lever. If necessary to remove the guard it can be done by taking off the butt stock and taking out the side screws in the usual way. The barrel should not be unscrewed from the frame except with proper appliances. When necessary to unscrew the frame, the extractor should be taken out and the breech block and guard put back in place, before putting on the wrench. _Sharp’s Rifle, (old model using paper or linen cartridge, also model of 1874 using metallic cartridge; made by Sharp’s Rifle Co., Bridgeport, Conn.)_—To take the arm apart: Relieve the lever key from pressure of spring by throwing down the lever guard, the key can then be taken out and the slide with lever guard attached, removed. To replace, put slide in place, leaving guard down, then insert lever key, turning the key to place. To take off the lock, give four or five turns to the side screws; tap their heads gently with the handle of the screw-driver to start the lock from its bed, the side screws can then be taken out and the lock removed. To replace the lock, press it firmly into its bed, before entering the screws and then turn them up close. _Sharp’s Rifle, (Borchardt’s Patent model of 1878; made by Sharp’s Rifle Co., Bridgeport, Conn.)_—Plate 3—AAA, receiver; BB, slide; CC, sear; D, firing bolt; E, cam; F, extractor; G, connection; H, trigger; K, safety catch; L, safety lever; MM, lever; NN, mainspring; O, lever spring; P, barrel stud; R, ramrod stop, military; S, ramrod, military; T, swivel, military; UU, barrel; W, forearm; W, link; X, butt-stock bolt; 1, lever pin; 2, lever screw. To take the arm apart: Loosen the rear screw under the barrel, and this will relieve the pressure of the lever spring. Cock the gun by opening and closing. Bring down the guard lever half way. Take out the lever pin on which the lever rotates. This pin is held in place by a small screw directly above it. Turn this screw to the left until the circular cut in its side is on a line with the lever pin, and the latter can then be removed. Pull lever out of the joint. Replace lever pin so as to hold extractor in place. Remove screw which connects lever and link, through hole in left side of link. Take out lever. Push slide up and out, and then take out extractor.