THEATRICAL THUNDER.
Suspend a sheet of iron, five feet wide by six or seven feet long, from the centre of one end by a cord. At the lower end, about five feet from the ground, fasten a handle. On seizing this, and shaking the sheet so that it shall wave in horizontal rolls from your hand upwards, the sound of thunder will be heard, and you will say, with Gainsborough, “Our thunder is decidedly the best.”
Another Way.—Make a square drum-head of wood, a yard long by half as much wide, over which you spread and firmly glue a sheet of parchment, rather thick, wet on being put on, so as to dry very tight. Hang this up, and, on tapping it with your fingers, the reverberation will imitate a thunder-peal closely. Thus, in the theatre, a tap on the big drum often serves for this purpose.