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.

To give Fire to one or two Rockets.

Set your Rockets Mouth upon the Edge of any piece of Timber, that stands so high from the ground, that the stick may stand perpendicular from it downwards or upon a side of a Wale or Carriage-wheel, or any dry place whatsoever; then lay a train of Powder that may come under the Mouth thereof; give Fire thereto, and you have done; but to Fire more Rockets than one, that as one descendeth, the other may ascend by degrees: make this Composition following; of Roch-Peter eight Ounces, Quick-Brimstone four Ounces, and fine Powder-dust two Ounces, which lay in a Line, from one Rocket to another, they being placed ten Inches, or a Foot one from another; give Fire to this Composition, and you have your desire, if you did prick the Rocket with the Wire, as directed; you shall see how gallant one will mount the Air, when the other is spent.