Entitled "Working Under Cover," photographic reproduction depicts a man guarded by a rope screen as he operates a guncotton press. Guncotton, or nitrocellulose, is used in explosives.
This plate is found within The Romance of Modern Chemistry, which is a layman's introduction to topics in chemistry. Includes a history of chemistry along with alchemy and the philosopher's stone; elements including organic, invisible, metals, acids, alkalies, and water; chemical changes such as fire, freezing and explosions; chemistry of the stars; food; electricity; solutions and crystals; as well as discoveries in chemistry.
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Reinhold Thiele & Company, and Frederick Nathan. “Workman Operating a Guncotton Press behind Protective Rope Screen.” The Romance of Modern Chemistry. London, England, 1909. https://digital.sciencehistory.org/works/9g54xj91r.
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