Transparency copy of a print advertisement for Dowpon, a herbicide marketed and sold by the Dow Chemical Company. The advertisement features an illustration of several waterfowl, with accompanying text detailing the impact of weeds like cattail on the Saganashkee Slough near Chicago. The text goes on to extol the benefits of Dowpon for weed control and its successful application to restore the natural environment of the slough.
Dow Chemical Company, and John MacManus. “They Came Back to Saganashkee,” 1966. Advertisements from the Dow Chemical Historical Collection, Box 7. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/rn301212r.
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