First get a large wooden bowl without a handle, then have an octogon wheel made of a flat board, eighteen inches diameter, so that the length of each side will be near seven inches; in all the sides cut a groove for the cases to lie in, this wheel being made, nail it on the top of the bowl, then take eight four ounce cases, filled with a proper charge, each about six inches in length. Now to cloath the wheel with these cases, get some whitish-brown paper, and cut it into slips, four or five inches broad, and seven or eight long, these slips being pasted all over on one side, take one of the cases, and roll one of the slips of paper, about an inch and a half on its end, so that there will remain about two inches and a half of the paper hollow from the end of the case, this case tie on one of the sides of the wheel, near the corners of which, must be holes bored, through which you put the pack-thread to tie the cases; having tied on the first case at the neck and end, put a little meal-powder in the hollow paper, then paste a slip of paper on the end of another case, the head of which put into the hollow paper on the first, allowing a sufficient distance from the tail of one, to the head of the other, for the pasted paper, to bend without tearing; the second case tie on as you did the first, and so on with the rest, except the last, which must be closed at the end, unless it is to communicate to any thing on top of the wheel; such as fire-pumps or brilliant fires, fixed in holes, cut in the wheel, and fired by the last or second case, as the fancy directs: six, eight, or any number may be placed on the top of the wheel, so that they are not too heavy for the bowl. Before you tie on the cases cut the upper part of all their ends, except the last, a little shelving, that the fire from one, may play over the other, without being obstructed by the case. Wheel cases, have no clay drove in their ends nor pinched, but are always left open, only the last, or those which are not to lead fire, which must be well secured. Of Mines for the Water. For these sort of mines you must have a bowl, with a wheel on it, made in the same manner, as the water wheel, only in the middle of the wheel must be a hole, of the same diameter you design to have the mine; those mines are nothing more than a tin pot, with a strong bottom, and a little more than two diameters in length; your mine must be fixed in the hole in the wheel, with its bottom resting on the bowl; then loaded with serpents, crackers, stars, small water rockets, &c. In the same manner as pots des aigrettes, but in their center, fix a case of Chinese fire, or a small gerbe, which must be lighted at the beginning of the last case on the wheel. These sort of wheels are to be cloathed as usual. Of Fire Globes for the Water.