Pyrotechnical sponge

See under Sponge.
a substance made of mushrooms or fungi, which are boiled in water, dried, and beaten, then put in a strong lye prepared with saltpeter, and again dried in an oven. This makes the black match, or tinder, brought from Germany.

See also: Pyrotechnic, Sponge

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.