When only two rockets, are to be fixed on one stick, let the length of the stick be, according to the last given proportion, but shaped after the common method, and the breadth and thickness, double the dimensions, given in the table page, 94. The point of poise, must be in the usual place, (let the number of rockets be what they will): if sticks made by the above directions, should be too heavy, plane them thinner; and if too light, make them thicker; but always make them of the same length. When more than two rockets, are tied on one stick, there will be some danger, of their flying up without the stick, unless the following precaution be taken, for cases being placed on all sides, there can be no notches, for the cord which ties on the rockets, to lay in; therefore instead of notches, drive a small nail, in each side of the stick, between the necks of the cases; and let the cord which goes round their necks, be brought close under the nails; by this means, the rockets will be as secure, as when tied on singly. Your rockets being thus fixed, carry a quick-match without a pipe, from the mouth of one rocket to the other; this match being lighted will give fire to all the rockets at once. Notwithstanding the directions already given, may be sufficient, for the management of those sort of rockets; I shall here add an improvment, of my own, on a very essential part of this device, which is, that of hanging the rockets, to be fired; for before I hit upon the following method, many of my essays, proved unsuccessful; but to prevent such perplexities, instead of the old and common manner of hanging them on nails or hooks, make use of this contrivance, have a ring made of strong iron wire, large enough for the stick to go in, as far as the mouths of the rockets, then let this ring be supported by a small iron, at some distance, from the post or stand, to which it is fixed; then have another ring, fit to receive and guide the small end of the stick; rockets thus suspended will have nothing to obstruct their fire; but when they are hung on nails or hooks, in such a manner, that some of their mouths, are against or upon a rail, there can be no certainty of their rising, in a vertical direction. Of Sky Rockets without sticks. To fire rockets without sticks, you must have a stand made in this manner; get a block of wood, one foot diameter or there abouts, and make the bottom of it flat, so that it may stand steady; in the center of the top of this block, draw a circle two inches and a half diameter, and divide the circumference of it into three equal parts; then take three pieces of thick iron wire, each about three feet in length, and drive them into the block, one at each point made on the circle; when these wires, are drove in, deep enough to hold them fast, and upright, so that the distance from one to the other, be the same at top, as at bottom, the stand is compleat.