_To make two images sacrificing, and a Dragon hissing._ Prepare a cestern having an altar of brasse or tin upon it, let there be in the cestern a hollow pipe turning up out of the cestern at each end; also in the middle within the altar, also on the side of the altar into the body of a dragon artificially made, with a reed in the mouth of it. Let there bee two boxes at the tops of the pipes, on the ends of the cestern, having two crooked pipes or cranes comming out of them. Fill the boxes with water when you occupy it, also put fire upon the altar, and the dragon will hisse, and the water in the two boxes being wrought upon by the heat of the fire comming thorow the pipes, will drop into the fire. These two boxes ought to be inclosed in the bodies of two images, and the two short cranes comming out of them in her armes and hands. [Illustration] _Experiments of producing sounds by Engins._ Prepare a vessell after the forme of the figure marked with the letters A, B, C, D, place it upon a frame, as F, G, H; this vessell must have a hole in the bottom, with a pipe fastned in it, as Q, to convay the water conteyned in it into a vessell or tub set under it, marked with the letters R, S, T, also a frame must bee fastned at the top of it, as G, H, L, having so many bels with little beaters or hammers to them (artificially hanged) as are requisit to expresse your desired tune. Lastly provide a sollid peece of timber, whose lower part must bee fitted unto the aforesayd vessell, so that it may easily slip up and down, and so high as that its foot resting upon the bottom of the vessell, the upper part thereof may stand somewhat above all the bels. Note likewise that that part of this wood aboue its bottom or foot must be cut away about three quarters of an inch. Vpon this wood thus fitted must bee fastned severall pins equall unto each bell, from the top unto the foot thereof, so disposed that they may orderly presse down the inward ends of the hammers of each bell, according as the tune goeth: when you use it, fill the cestern almost with water, and put the fitted peece of timber into it, and as the water runneth out at the bottom, it will play upon the bels: note that it were very requisit to haue a cock fastned to the pipe on the bottom of the vessell, that therewith you might at your pleasure stay the water. The like engines might be made to play upon wyer strings disposed upon a concavous water, to make the musick resound, but because this description giueth light enough for the framing of diuers other, I thought good here to omit them. [Illustration] _Experiments of motions by rarifying water with fire._