A professional who screens and dries nitrocellulose to prepare it for use in making dynamite. Respnsibilities include:

• Shovels nitrocellulose from drum onto nonsparking screen, using wooden shovel.
• Rubs nitrocellulose through screen by hand to remove foreign material.
• Spreads screened material on trays and places trays in drying chamber.
• Starts blower and tests drying material periodically, using moisture meter, to ensure that moisture content of nitrocellulose meets specifications.
• Scrapes dried material into fiber drums for delivery to dynamite mix house.