Soft Cement, For Steam Boilers, Steam Pipes, Etc

Red or white lead, in oil, 4; iron borings, 2 to 3 parts.

Hard Cement

Iron borings and salt water, and a small quantity of sal ammoniac with frees water.

Black Varnish, For Coal Buckets

Asphaltum, 1 lb.; lamp-blaek, ¼ lb.; resin, ½ lb.; spirits of turpentine, 1 qt. Dissolve the asphaltum and resin in the turpentine; then rub the lampblack with linseed oil, only sufficient to form a paste, and mix with the others. Apply with a brush.

Soldering Fluid

Take 2 oz. muriatic acid; add zinc till bubbles cease to rise; add ½ teaspoonfnl of sal ammoniac and 2 oz. of water. Damp the part you wish to solder with this fluid; lay on a small piece of solder, and with a piece of hot iron or soldering iron solder the part.

How To Clean And Polish Brass

Oil of vitriol, 1 oz.; sweet oil, ½ gill; pulverized rotten stone, l gill; rain water. 1½ pints; mix all, and shake as used. Apply with a rag, and polish with buckskin or old woolen.

Silvering Powder

Nitrate of silver and common salt, of each, 30 grs; cream of tartar, 3½ drs. Pulverize finely, mix thoroughly, and bottle for use. Unequalled for polishing copper and plated goods.

How To Mend Tinware

Take a vial two-thirds full of muriatic acid, put into it all the chippings of sheet zinc it will dissolve, then put in a crumb of sal ammoniac, and fill up with water. Wet the place to be mended with this liquid, put a piece of zinc over the hole, and apply a spirit lamp or candle below it, which melts the solder on the tin and causes the zinc to adhere.

Brunswick Black For Grates, Etc

Asphaltnra, 5 lbs.; melt, and add boiled oil, 2 lbs.; spirits of turpentine, 1 gal. Mix..

Gas Fitter's Cement

Mix together rosin, four and a half parts; wax, 1 part; and Venetian red, 3 parts.

Plumber's Cement

Black resin, 1 part; brick dust, 2 parts; well incorporated by a melting heat. Boiled linseed oil and red lead mixed together into a putty are often used by coppersmiths and engineers to secure Joints; the washers of leather or cloth are smeared with this mixture in a pasty state.

Browning For Twist Barrels

Spirits of nitre, ¾ oz.; tincture of steel, ¾ oz.; or use the unmedicated tincture of iron if the tincture of steel cannot be obtained; black brimstone, ¼ oz.; blue vitriol, ½ oz.; corrosive sublimate, ¼ oz.; nitric acid, 1 drachm; copperas, ¼ oz.; mix with 1½ pints rain water, and bottle for use. This is to be applied the same as the first. It causes the twist of the barrel to be visible after application, a quality which the other liquid does not possess.