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2. M. Berthelot and C. E. Rouelle, “Collection des Anciens Alchemistes Grecs”, Paris, 1887, Vol. I, pp. 19–73
3. E. O. von Lippmann, “Chemische Papyri des 3 Jahrhunderts”,Chem. Zeit., 1913,37, 933–934, 962–964, 1002–1004, and 1014–1015
4. E. R. Caley, “The Leyden Papyrus X”,J. Chem. Ed., 1926,3, 1149–1166
5. M. Berthelot and C. E. Rouelle,op. cit.“, p. 70