Knowra Mary the Jewess Mary the Jewess Mary the Jewess was an ancient alchemist traditionally credited with apparatus such as the bain-marie and tribikos. Her writings survive only through quotations and later reports.
Alchemy : A historical tradition combining practical material experimentation with theories of transformation, medicine, and nature. Mary is treated as one of alchemy’s early founders.
Alexandrian alchemy : A body of Greco-Egyptian alchemical practice and writing associated with ancient Alexandria. Mary is usually placed within this early alchemical setting.
Laboratory glassware : Vessels and instruments used to contain, heat, mix, or separate substances in laboratory work. Mary’s attributed apparatus belongs to the history of specialized laboratory equipment.
Women in science : The historical participation and contributions of women in scientific work and institutions. Mary’s reputation makes her a prominent early figure in histories of women’s scientific practice.
Tribikos : An alchemical distillation apparatus with three arms or outlets for collecting condensate. Later accounts credit Mary with this distinctive distillation device.
Zosimos of Panopolis : A Greek-speaking Egyptian alchemist whose writings, composed around the turn of the fourth century, are among the earliest surviving alchemical texts. Zosimos preserves important accounts of earlier alchemical authorities, including Mary.
Water bath : A controlled heating or cooling method that uses a container of water around a sample vessel. The bain-marie remains a practical form of indirect heating.
Cleopatra the Alchemist : An ancient alchemist known through Greek texts and later traditions, distinct from Cleopatra VII. She provides another example of a named woman in early alchemical history.
Distillation : A separation process that vaporizes a liquid and condenses its vapor. The tribikos is designed to collect products of distillation.
Pseudepigraphy : The attribution of a text to an author who did not write it, often to lend authority. Texts attributed to Mary complicate claims about her life and teachings.
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