The latest improvement in chemical matches is the Vesta, which consists of small wax, or stearine tapers, with an igniting composition at the end, consisting of chlorate of potass and phosphorus. 弗雷德里克·科利尔·贝克维尔.伟大的事实.
One of these is then roughly turned down on a lathe until it is round and slightly tapers all the way from one end to the other. 佚名.神奇的知识之书.