A plan of this is shewn by fig. 49. Let D be a deal table three feet six inches diameter; this table must be fixed horizontally on the top of a post; on the top of this post must be a perpendicular iron spindle, which must come through the center of the table; then let A, B, C, be three spokes joined to a triangular flat piece of wood, in the middle of which make a hole to fit easily over the spindle; let E, F, G, be pieces of wood, four or five inches in length each, and two inches square, fixed on the under sides of the spokes; in these pieces make holes lengthwise to receive the thin part of the blocks of the wheels, which when in, are prevented from coming out by a small iron pin being run through the end of each; K, L, M, are three vertical octagon wheels, eighteen inches diameter each; the blocks of these wheels must be long enough for three or four inches to rest on the table, round which part drive a number of sharp points of wire, which must not project out of the blocks more than one sixteenth of an inch; the use of these points is, that when the blocks run round, they will stick in the table, and help the wheels forward; if the naves be made of strong wood, one inch will be enough for the diameter of the thin part, which should be made to turn easy in the holes in the pieces E, F, G. On the front of the wheels, make four or five circles of strong wire, or flat hoops, and tie on them as many illuminations as they will hold at two inches from one another; instead of circles, you may make spiral lines cloathed with illuminations at the same distance from one another, as those on the hoops: when illuminations are fixed on a spiral line in the front of a wheel, they must be placed a little on the slant, the contrary way that the wheel runs: the cases for these wheels may be filled with any coloured charge, but must burn only one at a time. The wheels being thus prepared, you must have a globe, crown, or spiral wheel, to put on the spindle in the middle of the table; this spindle should be just long enough to raise the wheel of the globe, crown, or spiral wheel, so high that its fire may play over the three vertical wheels; by this means, their fires will not be confused, nor will the wheels receive any damage from the fire of each other; in cloathing this work, let the leaders be so managed, that all the wheels may light together, and the illuminations after two cases of each wheel are burnt. Of the Illuminated Chandelier. Illuminated works are much admired by the Italians, and indeed are a great addition to a collection of works; for in a grand exhibition an illuminated piece should be fired after every two, or three wheels, or fixed pieces of common and brilliant fires, and likewise illuminated works may be made cheap, quick, and easy.