SOLDERS. For Lead, melt 1 part of Block tin; and when in a state of fusion, add 2 parts of Lead. Resin should be used with this solder. For Tin, Pewter 4 parts, Tin 1, and Bismuth 1; melt them together. Resin is also used with this solder. For Iron, tough Brass, with a small quantity of Borax. CEMENTS. Glue. Powdered chalk added to common glue strengthens it. A glue which will resist the action of water is made by boiling 1 pound of glue in 2 quarts of skimmed milk. Soft Cement. For steam-boilers, steam-pipes, &c. Red or white lead in oil, 4 parts; Iron borings, 2 to 3 parts. Hard Cement. Iron borings and salt water, and a small quantity of sal ammoniac with fresh water. New wood work requires about 1 lb. to the square yard for 3 coats. The turpentine and varnish are added as the paint is required for use or transportation. for 1 square yard of new brick work requires, for 2 coats, 1.1 lb. ; 3 coats, 1.5 lbs. Spirits turpentine 1 square yard of new brick work requires, for 1st coat, 0.75; for 2d coat, 0.3 lbs. Dissolve the beeswax in the turpentine, and mix the paint warm Boil it gently for about 20 minutes, stirring it constantly during that time. Lacker for Small Arms, or for Water Proof Paper. Heat the ingredients in a copper or earthen vessel over a gentle fire, in a water bath, until they are well mixed. Add the litharge to the oil; let it simmer over a slow fire for 3 hours; strain it, and add the rosin and white-lead; keep it gently warmed, and stir it until the rosin is dissolved Staining Wood and Ivory. Yellow. Dilute nitric acid will produce it on wood. Red. An infusion of Brazil wood in stale urine, in the proportion of a lb. to a gallon for wood, to be laid on when boiling hot, and should be laid over with alum water before it dries. Or, a solution of dragon's blood, in spirits of wine, may be used. Black. Strong solution of nitric acid, for wood or ivory. Mahogany. Brazil, Madder, and Logwood, dissolved in water and put on hot. Blue. Ivory may be stained thus: Soak it in a solution of verdigris in nitric acid, which will turn it green; then dip it into a solution of pearlash boiling hot. Purple. Soak ivory in a solution of sal ammoniac into four times its weight of nitrous acid. THE END. the value of a few of the principal articles of fodder, as determined by experiment: 100 lbs. of good hay are are equal to green Indian Com, nye straw " " Wat straw pea stalk " " " " 10511 10811 1679 " ་ 199 bran wheat, pea toat chaff. 16 lbs. of hagis equal to 32 lbs. of potato. will and 14 lbs. of boiled potatoes allow of the diminution of 8 lbs, of hay. a An 04 requires 2 pencent of his live weight penday in "hay : if he works, 2 1⁄2 per cent. : milch cow, 3 percent; a fattering ox, 5 per cent at first; 4 per cent when half fat, or 41⁄2 average: Sheep when groww, of their weight in 31⁄21⁄2 percent hay per day |