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Start Over Collections Medicine in the Americas, 1610-1920 ✖Remove constraint Collections: Medicine in the Americas, 1610-1920 Subjects Insecticides ✖Remove constraint Subjects: Insecticides Titles Naphthaline as an insecticide, etc: its effect on seeds, plants, insects, and other animals ✖Remove constraint Titles: Naphthaline as an insecticide, etc: its effect on seeds, plants, insects, and other animals

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