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.
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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