Typed caption: "A freighter approaches from the north through Seymour Narrows between Vancouver Island and Maud Island, some 120 miles north of Vancouver. Here two underwater peaks, known as Ripple Rock, long a peril to navigation, were blasted...
Typed caption: "This is inside the tunnel under Seymour Narrows which extended about 2,400 feet from Maud Island to a point under Ripple Rock, a massive underwater mountain. This age-old peril to navigation was destroyed on April 5, 1958, by the...
Typed caption: "Long a menace to navigation, Ripple Rock used to lie in Seymour Narrows, above, 120 miles northwest of Vancouver, British Columbia. If the peaks of the rock had been visible they would have appeared directly above the freighter's...
Excerpts from the July 18, 1952 issue of the Chambers Works News. Includes a bird's-eye-view sketch of the plant in 1922. Article titles: Old Artist's Sketch Shows How Works Looked 30 Years Ago; Twelve More Plant Men Get Awards; Their Business Is...
Chemical industry; Dynamite; Explosives; Factories;
Special 75th Anniversary edition of the Dynam-Item newsletter documenting the history of DuPont's Repauno Works in Gibbstown, NJ . Item 15 of 23 from DuPont Plant Histories scrapbook.
Explosives; Factories; Government contracts; Gunpowder;
Booklet describing the construction of DuPont's Old Hickory, Tennessee munitions plant, which was built on a government contract during World War I. Item 11 of 23 from DuPont Plant Histories scrapbook.