To take apart: To dismount the pistol, half-cock the hammer, loosen the centre pin catch screw; draw out the centre pin, open the gate, and the cylinder can then be withdrawn. To remove the ejector, turn out the ejector tube screw, then push the front end away from the barrel and pull it towards the muzzle. The stock can be removed by turning out the two screws just behind the hammer, and that at the bottom of the strap. Remove the main spring and trigger guard; the parts of the lock can then be readily separated. The cylinder bushing should then be pushed out for cleaning. To remove the gate, turn out a screw in the lower side of the frame (hidden by the trigger guard), then the gate spring and catch can be withdrawn, and the gate can be pushed out. To assemble the pistol, follow the directions for dismounting in reverse order. The mainspring is most conveniently mounted by turning in the screw part way, then swinging around the front end of the main spring until it bears against the under side of the friction roll. The cylinder bushing should be frequently removed for cleaning. _North’s Patent Revolving Pistol._—To take the pistol apart, take out the screw in the forward end of the lock and barrel frame, which runs through the base-pin, then draw back the operating lever so as to bring the hammer to the half-cock, turn the cylinder round by hand until the mortise in the back end of the cylinder is found, which mortise connects the cylinder with the recoil shield; then unlock the rammer and draw it and the base-pin out; the cylinder is then left free to be taken out. When the cylinder is taken out be careful not to leave the spiral spring which lays in a recess made in the front end of the cylinder, and in putting together be careful to replace this spring. To take the lock apart, first take out the main and lever springs which are both held by one screw; then take out the hammer, next the small screw connecting the lever with the link of the toggle-joint (this screw is in the lever on the outside of the pistol just back of the trigger). Next bend up the toggle-joint and take out the lever and trigger, which are both held by one screw; then take out the toggle-joint and revolving lever, which are connected together by two screws. To put the lock together, first put in the toggle-joint, then the main and lever springs, next the hammer, then the lever and trigger; next screw the revolving lever to the toggle-joint.