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One-Pound

Mealed powder, 1 lb.; charcoal, 8 oz.; sulphur, 1 oz.

Two-Pound. Mealed powder, 1 lb. 4 oz.; salt- | ture of 140° or 150° Fahr.; add 10 parts of nitre, 5 petre, 2 oz.; charcoal, 3 oz.; sulphur, 1 oz.; iron- , 2 oz.; charcoal, 3 oz.; sulphur, 1 oz.; ironfilings, 2 filings, 2 oz.

Four-Pound. Mealed powder, lb.; saltpetre, 15 lbs.; sulphur, 2 lbs.; charcoal, 6 lbs.

Matches for Instantaneous Light. 1. Chlorate matches, without sulphur. Chlorate of potash, separately powdered, 6 drs.; vermilion, 1 dr.; lycopodium, 1 dr.; fine flour, 2 drs.; mix carefully the chlorate with the flour and lycopodium, avoiding much friction, then add the vermilion, and mix the whole with a mucilage made with 1 dr. powdered gum Arabic, 10 grs. of tragacanth, 2 drs. of flour, and 4 oz. of hot water; mix, add sufficient water to bring it to a proper consistence, and dip in it the wood, previously dipped in a solution of 1 oz. of gum copal, and oz. of camphor, in 6 oz. of oil of turpentine. 2. With sulphur. Chlorate of potash, 9 grs.; sulphur, 2 grs.; sugar, 3 grs.; vermilion, 1 gr.; flour, 2 grs.; spirit of wine, q. s. The chlorate of potash, etc., must be separately reduced to powder, and the whole mixed with as little friction as possible. The wood should be previously prepared as above, or with camphorated spirit. (These are ignited by dipping them in sulphuric acid, and instantly withdrawing them. The acid should be be absorbed by asbestos.] They are now become having given place to Lucifer Matches.

These contain phosphorus in a finely divided state, to which it is reduced by agitating it in some warm solution of gum or glue, then adding the other ingredients, so as to form a paste, into which the wood or card is dipped. It is said that urine and artificial urea have the property of readily dividing phosphorus when warmed and agitated together. The following are some of the published recipes: 1. Form 6 parts of glue into a smooth jelly, and rub with it 4 parts of phosphorus, at a temperaof red ochre, and 2 of fine smalts. The matches of an inch, first rubbing their ends on a hot iron are dipped in melted wax to the depth of 1-10th plate. 2. Noiseless Congreves. - Triturate 9 parts of phosphorus with a solution of 16 parts of gum, and add 14 parts of nitre and 16 of vermilion. lead, 5; smalts, 2; the glue is soaked in water for 3. Glue, 6 parts; phosphorus, 4; nitre, 10; red 24 hours, then liquefied in a warm mortar, and the phosphorus added, taking care that the temperature is not above 167° Fahr. lead, 24; proceed as before. 4. Glue, 21; phosphorus, 17 nitre, 38; red Safety Matches.

Will only ignite upon the prepared surface. For the splints take of chlorate of potassa, 6 parts: sulphuret of antimony, 3 parts; glue, 1 part. For the friction surface, amorphous phosphorus, 10 parts; sulphuret of antimony, or black oxide of manganese, 8 parts; glue, 3 to 6 parts. Spread evenly upon the surface, previously made rough with glue and sand.

Matches without Phosphorus. tion of the common lucifer match have induced The dangers arising from the universal adopthe universal adopchemists to seek a substitute for it. M. Peitzer has recently proposed a compound which is obtogether equal volumes of solutions of sulphate of tained in the shape of a violet powder, by mixing copper , one of which is supersaturated with ammonia, and the other with hyposulphite of soda. A mixture of chlorate of potash and the above powder will catch fire by percussion or rubbing; it burns like gunpowder, leaving a black residue.

M. Viederhold proposes a mixture of hyposulphite of lead or baryta, or chlorate of potash for matches this compound is that it attracts moisture too without phosphorus. The only inconvenience of easily.