The full motion of the lever forward discharges the empty shell, the return places the loaded cartridge in position, when the arm is ready for discharge. _Semi-Hammerless._—The American Arms Company are now producing a gun at a low price called the semi-hammerless single gun, for which the manufacturers claim that it combines the advantages of a hammerless without the danger of the self-cocking principle. To cock the gun press down the little lever on the side. The lock-plate is easily removed to get at and oil the lock. Its construction is such that no water or dirt can penetrate to the lock. _The Hotchkiss Magazine Gun.—(Made by Winchester Arms Co., New Haven, Conn.)_—To remove the magazine cut off, turn the notched end to the front; place the point of a screw-driver under the rear end and bear down gently, slightly supporting the front end against the pressure with the fingers of the left hand. To remove the breech-bolts press on the trigger and at the same time unlock the bolt and withdraw it. N. B.—The bolt can be removed in the following manner: unlock and draw back the bolt until the cocking piece just clears the receiver; then, letting go the handle, take hold of the cocking piece and turn it down to the right until the projection on the bolt-head leaves the groove under the front end of the locking-tube. The latter may then be drawn out at the rear, and the head at the front of the receiver. To return the bolt, the head must be inserted from the front and the part from the rear, unless the cut-off be removed. To remove the magazine-spring and cartridge-follower, insert the point of a screw-driver in the hole at the rear of the magazine tube, and draw out the tube. The barrel cannot be removed until the magazine has been taken out. Remove then the trigger spring screw and spring, the cartridge stop pin and stop, the trigger pin and trigger using a punch to drive out the pin. Remover the trigger catch pin and catch, using the point of a screw-driver in the notched end of the pin to draw it out. To dismount the breech-bolt, remove the bolt-head, which can be done by holding the cocking-piece firmly in the left hand, and with the right turn down the handles as in the act of locking the bolt; the head will then slip off. Turn out the firing-pin screw; slip the bolt-head partly on the projecting end of the firing-pin, and use it as a wrench to unscrew the pin; the mainspring may then be removed. Remove the extractor by tapping gently on its projecting end with a piece of wood. To assemble, proceed in the reverse order. _Howard’s Sporting Rifle, “The Thunderbolt.”_—To clean the lock, take out the screw that attaches the back end of the yoke to the breech piece; unscrew the barrel; then take the nut from the back end of the sliding breech-pin, which with the mainspring and hammer, constitute the lock.