The mariners magazine, or, Sturmy's mathematical and practical arts containing the description and use of the scale of scales, it being a mathematical ruler, that resolves most mathematical conclusions, and likewise the making and use of the crostaff, quadrant, and the quadrat, nocturnals, and other most useful instruments for all artists and navigators : the art of navigation, resolved geometrically, instrumentally, and by calculation, and by that late excellent invention of logarithms, in the three principal kinds of sailing : with new tables of the longitude and latitude of the most eminent places ... : together with a discourse of the practick part of navigation ..., a new way of surveying land ..., the art of gauging all sorts of vessels ..., the art of dialling by a gnomical scale ... : whereunto is annexed, an abridgment of the penalties and forfeitures, by acts of parliaments appointed, relating to the customs and navigation : also a compendium of fortification, both geometrically and instrumentally / by Capt. Samuel Sturmy.

SECT. XIV. How to make and use the Starrs.

TAke little square pieces of Brown Paper, which fill with either of the foresaid Compositions which you like best, fold it down, rowling it til you make it round, about the bigness of a Nut or bigger, according to the size of your Rocket that you intend them for, Prime them with drawing through them Cotton-Week, and they are prepared to make fast to the Wheels: you may also make them thus; you must have a Rowler which must be as big as an ordinary Arrow, which shall be to Rowl a length of Paper about, and Paste it round, and dry it well, fill it with a Thimble, and thrust it down with a Rowler, and then cut it in short Pieces about half an Inch long; then you must have in readiness either hot Glue, or Size mingled with red Lead, dip therein one end of your short Pieces, least they take Fire at both ends together; besides, it will not so easily blow out; these being thus done, set them to dry until you use them, and in the top of the Rocket, whereas in the 10 Section you were to fill it with Pistol-Powder, now you must put none, but a very little, and that is to blow one of the bits of Starrs out, which must stand in the room of the Powder, and on the top of that another Tire, with strewing a little Powder and dust; and in like manner another, to a third or fourth, putting a little small corned Powder between them, until you come unto the top of the Rocket-case, there put a Paper over the Head of it, and tie it close about the top, that none of the Powder come from between the Stars; the Cotton-Week is such as the Chaundlers use doubled 6 or 7 times, dipped in Salt-Peter Water, or Aqua Vita, wherein some Camphire hath been dissolved; or for want of either, in fair Water, cut it in divers pieces, Rowled in Mealed Powder dryed in the Sun, and it is done.