Sales pamphlet 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 pamphlet details the nuisance of dust arising from the use of motor cars on unpaved roads and extols the benefits of using Dowflake as a surface treatment to lock in moisture and reduce the maintenance and upkeep required of unpaved roads and drives.
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Dow Chemical Company. “Enhance the Beauty of Your Estate With Firm Moist Dustless Drives,” 1924. Advertisements from the Dow Chemical Historical Collection, Box 7. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/6q182k762.
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