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Dublin, Trinity College Library MS. 389. Paper. Folio. 16th Century. 1. De quintis essentiis vegetabilium.
2. G. Ripley. Chymical Preparations.
3. Modus lapidis albi componendi.
4. A work wrought and fully proved in 1406.
5. Geoffrey Chaucer, his Chymical Preparations, called his Worke.
6. Treatise of the Medicinal Stone mentioned by Aristotle.
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