Feu mort. Dead light; dead fire. See [page 485.]
Feux de Gouvernement. State or public fire-works.
Filagere. The thread used for strangling.
Flamboyante. A species of rocket, which, from its effects in the atmosphere, is called the comet.
Foudres. Thunderbolts, lightnings; in pyrotechny, the preparations, used to imitate thunderbolts; thunder powder.
Foudroyante. A case or rocket, which imitates thunder: Fougette. (See Baguette à feu.)
Fougasse. A small mine.
Fougues. Small rockets, without sticks.
Fourneau. Furnace. A mine. The chamber of a mine.