Cascarilla bark, eight drachms; gum benzoin, four drachms; yellow sanders, two drachms; styrax, two drachms; olibanum, two drachms; charcoal, six ounces; nitre, one drachm and a-half, mucilage of tragacanth, sufficient quantity. Reduce the substances to a powder, and form into a paste with the mucilage, and divide into small cones; then put them into an oven until quite dry.