Water-mines
For water-mines you must have a bowl with a wheel on it, made in the
same manner as the water-wheel; only in its middle there must be a
hole, of the same diameter as that of the intended mine. These mines
are tin pots, with strong bottoms, and a little more than two
diameters in length: the mine must be fixed in the hole in the wheel,
with its bottom resting on the bowl; then loaded with serpents,
crackers, stars, small water-rockets, &c., in the same manner as pots
of aigrettes; but in their centre fix a case of Chinese fire, or a
small gerbe, which must be lighted at the beginning of the last case
on the wheel. These wheels are to be clothed as usual.