Ammunition not expended at the end of the year (December 31) is no longer available. HUNTING-KNIFE. A model, having a blade 12 inches long, and similar in shape to the regular bowie-knife, is now under consideration by the War Department. CHAPTER V. Care and Fitting, etc., of Harness. Care of Carriages. Care of Guns. Care of Ammunition. Guard Orders. CARE OF PAINTS, OILS, AND PAINT-BRUSHES. =Paints, Turpentines, Oils, Lacquers, etc.=, are kept in a room separate from other stores, preferably a cellar. The floor should be covered with several inches of fine sand, which should be renewed occasionally. Sawdust should _never_ be used for the floor. =Volatile Oils=, such as kerosene or benzine, must never be kept stored in a room with other oils and paints, but in such place that the least possible danger will arise in case of fire. =Paint-brushes=, when new, and before using, should be wrapped with strong twine and soaked in water. After using they should be cleaned with spirits of turpentine and put away in a vessel containing water, in order to keep them pliable. PAINTS, LACQUERS, ETC. =Waterproof Paint.=--A solution of pure india-rubber in linseed-oil, ground with pure graphite into a thick, elastic, smoothly flowing paint. =Flexible Paint for Canvas.=--Dissolve 2½ pounds of yellow soap in 1½ gallons of boiling water. Grind while hot with any good oil-paint. =Varnish for Harness.=--India-rubber, ½ pound; spirits of turpentine, 1 gallon. Dissolve enough to make it a jelly; then take equal quantities of good hot linseed-oil and the above mixture, incorporate well over a slow fire, and it is ready for use. =Linseed-oil Varnish.=--Boil any quantity of linseed-oil for an hour, stir in until dissolved 4 ounces of powdered rosin to each pound of oil; then add 1 ounce spirits of turpentine to each pound of oil; cool and strain. It is cheap, a good preservative of wood, and stands hot water well. =Lacquer for Iron Ordnance.=--Coal-tar (of good quality), 2 gallons; spirits of turpentine, 1 pint; the turpentine to be added in small quantities during the application of the lacquer. The surface of the metal must be first cleaned with a scraper and a wire brush, if necessary, and the lacquer applied hot, in two thin coats, with a paint-brush. =Lacquer for Bright Ironwork.=--Boiled linseed-oil, 80.5 parts; litharge, 5.5 parts; white lead ground in oil, 11.25 parts; pulverized rosin, 2.75 parts. Add the litharge to the oil; let it simmer over a slow fire for three hours; strain it and add the rosin and white lead; keep it gently warmed, and stir until the rosin is dissolved. Apply it with a paint-brush. =Lacquer for Brasswork.=--Alcohol (95%), 2 ounces; seed-lac, 1 ounce. Put in glass for six days, exposed to the light; shake well once each day. Apply with brush while work is hot.