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Reprinted by Popular Demand: Rock Tunnel Methods

  • 1937

Rights

Public Domain

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Formed in 1912 as part of an anti-trust settlement with DuPont, the Hercules Powder Company (later Hercules Inc.) initially specialized in the manufacture of explosives and smokeless powders and subsequently diversified its business to encompass a variety of industrial products, including pine and paper chemicals, synthetics, pigments, polymers, and cellulose.

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Genre
Extent
  • 11 in. H x 8 in. W
Language
Subject
Rights Public Domain Mark 1.0
Credit line
  • Courtesy of Science History Institute

Institutional location

Department
Collection
Series arrangement
  • Series II: Advertising
Physical container
  • Volume 1937

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Cite as

Hercules Incorporated. “Reprinted by Popular Demand: Rock Tunnel Methods.” 1937 Hercules Advertisements, 1937. Records of Hercules Incorporated, Volume 1937. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/j6731459s.

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