351. Paper Fire-Screens
Paper fire-screens should be sized and coated with transparent varnish, otherwise they will soon become soiled and discoloured.
352. Pastilles for Burning
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, used quite dry.
353. Breaking Glass
Easy method of breaking glass to any required Figure.—Make a small notch by means of a file on the edge of a piece of glass, then make the end of a tobacco-pipe, or of a rod of iron of the same size, red hot in the fire, apply the hot iron to the notch, and draw it slowly along the surface of the glass in any direction you please: a crack will follow the direction of the iron.