Soot spots, being composed of fine particles of carbon, are insoluble and must be removed from a fabric mechanically. Use one of the following agents:

1. Soap and water (ordinary laundering). First brush the stain, then place on the stain absorbent powders, such as fuller's earth, French chalk, cornstarch, cornmeal, or salt, work them around until they become soiled, and brush them away. Then wash or sponge the stain.

2. Chloroform, gasoline, or other organic solvents, for materials injured by washing. First brush the stain lightly or treat it with absorbent powder, as in No. 1, then immerse it in the solvent and rub gently, or brush with a small, soft brush. For the treatment of rings caused by organic solvents, see "grease," page 292.