To Fire Sky-rockets Under Water
You must have stands made as usual, only the rails must be placed flat
instead of edgewise, and have holes in them for the rocket-sticks to
go through; for if they were hung upon hooks, the motion of the water
would throw them off: the stands being made, if the pond be deep
enough, sink them at the sides so deep, that, when the rockets are in,
their heads may just appear above the surface of the water; to the
mouth of each rocket fix a leader, which put through the hole with a
stick; then a little above the water must be a board, supported by the
stand, and placed along one side of the rockets; then the ends of the
leaders are turned up through holes made in this board, exactly
opposite the rockets. By this means you may fire them singly or all at
once. Rockets may be fired by this method in the middle of a pond, by
a Neptune, a swan, a water-wheel, or any thing else you choose.
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