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Automatic Oil Drip
Automatic oil drip in ditch in Crossett (Ashley County); July 6, 1916. Oil on the water’s surface destroys the larvae of the anopheles mosquito that transmits malaria.
Automatic oil drip in ditch in Crossett (Ashley County); July 6, 1916. Oil on the water’s surface destroys the larvae of the anopheles mosquito that transmits malaria.