Indice: Introduction: What is alchemy? 1. Origins: Graeco-Egyptian chemeia 2. Development: Arabic al-Kimiya 3. Maturity: medieval Latin alchemia 4. Redefinitions, revivals, and reinterpretations: alchemy from the eighteenth century to the present 5. The golden age: practicing chymistry in the early modern period 6. Unveiling the secrets 7. The wider world of chymistry. Epilogue. Acknowledgments. Notes. Bibliography. Index