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Composition for Rockets

For charge behind them. The stars which are 2 ounce rockets: -Mix 54½ parts nitre (salt- nearest to the mouth of the case should fit a petre), 18 parts sulphur, and 274 of charcoal, all in fine powder. Sift through lawn. For 4 ounce rockets: -64 parts nitre, 16 parts sulphur, and 20 parts charcoal. For 8 ounce to 1 pound rockets: -624 parts nitre, 154 parts sulphur, and 214 parts charcoal. For rockets little tightly, and gradually a little more loosely as they are further from the mouth. The charges of powder behind them should also decrease by degrees as their position is further from the mouth of the case. It is also advisable to put a loose wad of one thickness of paper, with a hole in the centre, between each star and the gunpowder behind it. inch in diameter:-16 parts nitre, 4 parts sulphur, and 7 parts charcoal. For rockets 14 inches in diameter use 1 part more nitre, and 2063. Composition for Roman Canfor still larger rockets, another additional part dles. Mix pound meal-powder, 25 pounds nitre. By using 1 part less charcoal, and saltpetre, and 1/2 pound each sulphur and glass dust. adding respectively 3, 4, and 5 parts fine steel filings, the above are converted into brilliant fires; or, by using coarse iron filings, and still less charcoal, they become Chinese fire.