Is a wheel piece; this is composed of six long spokes, with a hexagon
vertical wheel at the end of each; these wheels run on spindles in the
front of the spokes; all the wheels are lighted together: two ounce
cases will do for these wheels, and may be filled with any coloured
charge.
After having spoke of the several parts of the regulated piece, each
by their proper names and colour of fire, I shall next proceed with
the proportion of every mutation, together with the method of
conveying the fire from one to the other, and the distance they stand
one from the other on the spindle.