Palm-Tree. This piece, though made of common fires, and of a simple construction, has a very pleasing effect; owing to the fires intersecting so often, that they resemble the branches of trees. Fig. 2d. let A, be a perpendicular post of any thickness so that it be sufficiently strong to hold the cases; let the distance from B to C, be two feet six inches, and from C to D, two feet six inches, and let the length of each cross piece be two feet; on each end of each, fix a five pointed star, then fix on pegs made on purpose, twelve inch half pound cases of brilliant fire, as in the figure, all the cases and stars, must be fired at one time; this piece should be fixed high from the ground. Illuminated Pyramid, with Archimedian Screws, a Globe and Vertical Sun. May be made of any size; one made according to the Dimensions of fig. 3d, will be a good proportion, whose whole height is twenty one feet; from C to D, six feet, from E to F, nine feet, the space between the rails must be six inches, and the rails as thin as possible, in all the rails stick port-fires at four inches distance; the archimedian screws G, K, are nothing more than double spiral wheels, with the cases placed on their wheels horizontally instead of obliquely, the vertical sun I, need not consist of more than twelve rays, to form a single glory; the globe at top must be made in proportion to the pyramid, which being prepared according to the preceding directions, place your leaders so that all the illuminating port-fires, screws, globe, and sun, may take fire together; the pyramid must be supported by the two sides, and by a support brought from a pole, which must be placed two feet from the back of the pyramid, in order that the wheels may run free. Rose-Piece and Sun. A rose piece may be used for a mutation of a regulated piece, or fired by itself, this piece makes the best appearance when made large; if its exterior diameter be six feet it will be a good size; fig. 4, shews the manner it appears before it is fired; let the exterior fell be made of wood, and supported by four wooden spokes, all the other parts on which the illuminations are fixed, must be made of strong iron wire; on the exterior fell, place as many half pound cases of brilliant charge as you think proper (but the more the better) for the nearer the cases are placed, the stronger will be the rays of the Sun; the illuminations should be placed within three inches of each other, they must be all fired together and burn some time before the sun is lighted, which may be done by carrying a leader from the middle of one of the illuminations, to the mouth of one of the sun cases. Transparent Stars with Illuminated Rays.