The manner of placing Fireworks to be exhibited, with the order of Firing. Nothing adds more to the appearance of fireworks, than the placing them properly; though the manner of placing them chiefly depends on the judgment of the maker. I shall give such rules here, as have been generally observed; for example, whether your works are to be fired on a building, or on stands; if they are a double set, place one wheel of a sort on each side of the building, and next to each of them towards the center, place a fixed piece, then wheels, and so on, leaving a sufficient distance between them, for the fire to play from one without burning the other; having fixed some of your works thus in front, place the rest behind them, in the center of their intervals; the largest piece, which is generally a regulated or transparent piece, must be placed in the center of the building, and behind it a sun, which must always stand above all the other works: a little before the building or stands place your large gerbes, and at the back of the works, fix your marron batteries, pots des aigrettes, pots des brins, pots des saucissons, air ballóóns, and flights of rockets; the rocket stands may be fixed behind or any where else, so as not to be in the way of the works. Single collections are fired on stands, which stands are made in the same manner as theodolite stands, only the top part must be long or short occasionally; these sort of stands may be fixed up very soon without much trouble. Having given sufficient instructions for placing of fireworks, I shall proceed with the manner of firing them. Order of Firing.