Alan St. H. Brock, Pyrotechnics: The History and Art of Firework Making
“ The principle on which the Roman candle is constructed is as follows: The case is charged with a series of repetitions of the following—Roman candle fuse, “dark fire,” star, blowing charge. These are repeated as many times as the case will hold, and function thus—the fuse burns with a fountain effect, and upon being exhausted lights the “dark fire,” which lights the star, flashes round it and fires the blowing charge which propels the star from the case. The blowing charge also ignites the next layer of fuse, and the effect is repeated. ”
