Advertisement for Dowflake Calcium Chloride, a product of the Dow Chemical Company marketed for use to control dust on unpaved roads and parking lots, as well as a roadway deicer. The advertisement details the nuisance of dust arising from the use of motor cars and extols the benefits of using Dowflake as a surface treatment to lock in moisture and reduce the maintenance and upkeep required of unpaved gravel roads, as well as playgrounds, tennis courts, and other surfaces.
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Dow Chemical Company. “Drawing Safety Right Out of the Blue,” 1940. Advertisements from the Dow Chemical Historical Collection, Box 7. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/qb98mg241.
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