Alchemy

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How to make imitation gold and imitation silver, how to fix dyes, how to manufacture artificial gems and pearls — these are the recipes a scribe in Greco-Roman Egypt copied onto papyrus in the second half of the third century. The sheets survive as the Leiden and Stockholm papyri, and they are the oldest pages of the craft out of which alchemy rose — the metalworking, dyeing, and mineral arts of Greco-Roman Egypt, already expert at making one substance wear the face of another. Alchemy begins where those recipes acquire a doctrine: where the goal stops being the appearance of gold and becomes gold itself.

Alchemy is the art of transmutation: the changing of one substance into another, more perfect kind — most famously the ripening of base metals into gold by means of a prepared agent, the philosophers’ stone. That is the popular picture, and it is not wrong. But it is only part of what the art is, and the gap between the popular picture and the practitioners’ own understanding of the Work is where most of the subject’s interest lies.

The word reaches English through Arabic al-kīmiyāʾ, itself drawn from Greek chēmeia. Where the Greek word came from is genuinely uncertain, and the two candidate ancestries are entangled: Khemia, an old name for Egypt — the land of black earth, as Plutarch records it — or the Greek chein, to pour, the verb of the foundry. Either lineage preserves the art’s birthplace in a single syllable: a black land, a poured metal.

The earliest alchemical author whose writing survives is pseudo-Democritus, whose Physika kai mystika and its companion books — composed probably in the first century CE — raised the craft recipes into a connected teaching. From the same early stratum comes Maria the Jewess, her century uncertain, somewhere between the first and the third: the great engineer of the art, whose gentle water-bath still carries her name as the bain-marie. And around 300 CE comes Zosimos of Panopolis, the first alchemist known by name as an author, in whom furnace work and the work on the soul are already a single discipline. The Greek corpus survives because Byzantium anthologized it: its chief manuscripts are the Marcianus graecus 299, copied in the tenth or eleventh century, and the Parisinus graecus 2327, copied in the fifteenth, and the whole corpus was first collected in print by Berthelot and Ruelle in 1887–88.

Over the entire Western lineage presides Hermes Trismegistus, thrice-greatest, heir of Thoth, the art’s founder and its patron of writing and hidden things. The work is the hermetic art, and a vessel closed with his seal is hermetically sealed — English took both words from him, hermetically sealed by about 1600 and hermetic by the 1630s. Under his name travels the Emerald Tablet, the few dense lines of correspondence-doctrine the tradition condensed into the maxim as above, so below — the art’s warrant that what happens in the vessel, in the heavens, and in the worker answer one another. The later fortunes of his books belong with the Arabic Hermetica and with Renaissance Hermetism; alchemy is the laboratory wing of that house.

The theory at the art’s center is simple and vast. Metals are not separate species but one substance at different ages: in the depths of the earth nature ripens them slowly toward gold, and lead is gold that has not finished. All of them are compounded of two principles, sulfur and mercury — not the common substances that bear those names, but their idealized essences — and the difference between metal and metal is a matter of purity and proportion. Transmutation is therefore no violation of nature but its completion: the alchemist hastens in the vessel what the earth performs over ages, and the Stone is the agent of that hastening — the perfected matter which, projected upon imperfect metal, ripens it at once. Whether human art could truly equal and accelerate nature’s own productions was a real and long-fought question, argued wherever the art was practiced, and it stands at the heart of alchemy’s medieval and early modern defenses.

The Work moves through stages signed by color: the blackening in which the matter dies, the whitening of its cleansing, sometimes a yellowing, and at last the red — the rubedo — which is the sign of the Stone completed. The laboratory work was real and exacting: distillation, sublimation, the careful staging of the color sequence in the fire. And the books that teach it are veiled. Alchemical writing speaks in Decknamen — cover-names — and dense allegory, partly to guard the Work from the unworthy, partly because the matter at its center does not yield to plain naming. What the art taught varied across its centuries and schools, and modern historians stress that variety rather than a single creed; but the doctrine of one maturing matter, two principles, and a perfecting agent is the thread that runs longest.

The Greek corpus passed into Arabic, and there the art was enlarged for some four centuries. The translation movement of eighth-century Baghdad turned chēmeia into al-kīmiyāʾ; the immense corpus traveling under the name of Jābir ibn Hayyān gave the sulfur–mercury theory its systematic form and built a science of balances upon it — a corpus that is vast, composite, and pseudepigraphic, written mostly in the late ninth and tenth centuries under the name of an eighth-century master, as Paul Kraus established in the 1940s. Al-Rāzī brought the laboratory’s substances and operations into ordered classification, and Ibn Sīnā (Avicenna) denied that true transmutation was possible at all — a denial the art answered for centuries afterward. The whole Islamic phase, with its astrology and talismanic science and its channels back into Europe, is treated under Islamic alchemy and astral magic.

In 1144 Robert of Chester finished his Latin rendering of Morienus, the Liber de compositione alchemiae, and with it Latin alchemy has its conventional birthday. The art arrived in the medieval West already mature — vocabulary, theory, and claims fully formed — and the Latin centuries received, debated, and extended it: the Summa perfectionis, written under the name of Geber late in the thirteenth century, codified the art for the West; the schools disputed whether art could equal nature; anonymous authorities circulated, chief among them the Turba Philosophorum, the “assembly of the philosophers”; and in 1317 the decretal Spondent quas non exhibent of Pope John XXII condemned false transmuters. From these furnaces came much that chemistry keeps: the first descriptions of the mineral acids, the steady refinement of distillation apparatus, a procedural literature of operations. The Latin phase has its own depth in Latin medieval alchemy.

Print fixed the canon. The great compendia — the Artis Auriferae (Basel, 1572 and 1593), the Theatrum Chemicum (Strasbourg, 1602–1661), the Musaeum Hermeticum (Frankfurt, 1625, enlarged 1678), and Manget’s Bibliotheca Chemica Curiosa (Geneva, 1702) — gathered the scattered manuscript tradition between covers, and the “alchemy” that later readers encountered was in large measure the editorial artifact of these Protestant printing houses. The same decades produced the art’s most beautiful book, Michael Maier’s Atalanta Fugiens (Oppenheim, 1617), printed in the de Bry workshop, which joined engraved emblems to epigrams and fugues so that the Work could enter through eye and ear at once. The sixteenth century had already redirected part of the art’s ambition from gold to the body: Paracelsus turned alchemy toward medicine and made it the engine of a new medical chemistry.

In the seventeenth century there was no line to cross between alchemy and chemistry, because no line existed: alchemia, chymia, and chemia were interchangeable names for one undivided pursuit, and the historians’ term for it is now the actors’ own — chymistry. George Starkey, masked as Eirenaeus Philalethes, wrote in this world, and the 1678 volume Ripley Reviv’d gathers his tracts with Thomas Vaughan’s. Robert Boyle pursued transmutation. Isaac Newton wrote and transcribed about a million words on alchemy — a labor largely hidden from his contemporaries, dispersed at the Sotheby’s sale of 1936, and only now being edited whole. None of this was a great man’s embarrassing hobby; it was the chemistry of its age, practiced by its best hands.

The line was drawn afterward. A rigid distinction between alchemy and chemistry appears only from about 1720, and by the 1740s “alchemy” had been narrowed to mean gold-making alone — at which point the Enlightenment could tell its tidy story of superstition giving way to science. That story governed the verdict on alchemy for two centuries, and it is the story the modern scholarship has unmade.

China worked the art on its own terms, largely independent of the West in its formative centuries. The external way, waidan, compounded elixirs of mineral and metal — above all mercury — in pursuit of long life and immortality, and flourished under Tang patronage to the point of catastrophe: at least five Tang emperors, from Taizong (d. 649) to Xuanzong (d. 859), died elixir-related deaths, and Han Yu’s memorial of 819 spoke for a literati turn against the laboratory. The art answered by turning inward. In the inner way, neidan, the whole alchemical lexicon — furnace and tripod, lead and mercury, the firing-times — became interior physiology, the body itself the vessel and the refining done in breath and spirit; by the Northern Song the inner way was dominant. Its foundations are the Cantong qi, attributed by tradition to Wei Boyang in the second century CE though in current scholarship a layered and composite text, and the Wuzhen pian of Zhang Boduan, with its preface dated 1075; the Quanzhen order, founded by Wang Chongyang and institutional from 1167, made inner alchemy the discipline of a monastic Daoism.

India’s alchemy, rasāyana and the later rasaśāstra, is the way of rasa — mercury — worked with sulfur in operations that bind the art to medicine and to hatha yoga. It grew within the Śaiva siddha traditions, whose legendary adept Nāgārjuna Siddha presides over its lore, and its aim is as much the perfected body as the perfected metal.

The inner reading of the Work is as old as Zosimos, in whom the distillations and the dreams interpret one another: the purification of the operator’s soul mirrored in the vessel, and the vessel’s stages in the soul. For most of the art’s history the spiritual and the operative were not two alchemies but one. But the claim that alchemy was only and always an inner discipline — that the laboratory was never more than a veil — is a nineteenth-century arrival, and it is easy to project it backward further than the early sources warrant. Mary Anne Atwood’s A Suggestive Inquiry into the Hermetic Mystery (1850), suppressed almost at once and reissued in 1918, made the Victorian case that the art was spiritual regeneration in chemical dress; Ethan Allen Hitchcock argued a parallel case in America in 1857. Herbert Silberer’s Probleme der Mystik und ihrer Symbolik (1914, English translation 1917) carried the reading into psychoanalysis. And Carl Jung made it a century’s common sense: after Richard Wilhelm sent him the Secret of the Golden Flower in 1928 — itself a seventeenth-century Chinese spirit-writing text, not an ancient one — Jung read the European corpus as a map of individuation, lecturing at Eranos from 1933 and building Psychologie und Alchemie (1944) and Mysterium Coniunctionis (1955–56) upon it. That reading belongs to alchemy’s twentieth-century reception rather than to the excavation of its early texts, and it now belongs to the art’s history in its own right, alongside the broader occult revival.

The new historiography

The scholarship of the last half-century rebuilt the entire picture. Betty Jo Teeter Dobbs’s The Foundations of Newton’s Alchemy (Cambridge University Press, 1975) demonstrated that Newton’s alchemical work was serious and lifelong, and the digital edition that grew from that demonstration — The Chymistry of Isaac Newton, edited at Indiana University by William R. Newman — is editing the million-word manuscript corpus itself. Newman and Lawrence M. Principe’s “Alchemy vs. Chemistry: The Etymological Origins of a Historiographic Mistake” (Early Science and Medicine, 1998) showed that the alchemy/chemistry split is an early-eighteenth-century construction and gave the field its working term, chymistry. Newman’s Promethean Ambitions (University of Chicago Press, 2004) set the art-versus-nature debate at the center of alchemy’s intellectual history, and Principe’s The Secrets of Alchemy (University of Chicago Press, 2013) is the standard one-volume synthesis of the Western tradition, built in part on replicating alchemical processes at the bench. The revision has its critic: Brian Vickers’s “The ‘New Historiography’ and the Limits of Alchemy” (Annals of Science, 2008) argued that it understates the art’s religious and revelatory dimension, and Newman answered in Perspectives on Science (2009) before taking stock in “What Have We Learned from the Recent Historiography of Alchemy?” (Isis, 2011) — a debate still running. The foundations have been re-edited as well: Paul Kraus’s two-volume Jābir ibn Hayyān (Cairo, 1942–43) established the composite, pseudepigraphic character of the Jabirian corpus; Matteo Martelli’s The Four Books of Pseudo-Democritus (2013) gives the earliest Greek alchemical writings their critical edition and first-century dating; and David Gordon White’s The Alchemical Body (University of Chicago Press, 1996) is the standard study of the Indian siddha traditions.

Whether the deepest claim was ever made good is a question the documentary record answers plainly: no practitioner left a verifiable account of producing gold. What the art left instead is an enormous, difficult literature about matter, change, and perfection — and a habit of looking at the physical world as something that might be brought to completion rather than merely used. The Musaeum Hermeticum, printed at Frankfurt in 1625 while the furnaces still burned and enlarged in 1678, gathered that literature’s masterworks between two covers, and A. E. Waite turned it into English in 1893 as The Hermetic Museum. But the Work’s central wager — that lead is unfinished gold, and the worker unfinished too — was never confined between covers: the million words on alchemy in Newton’s hand, scattered at auction in 1936, are still being edited.

→ In the library: The Turba Philosophorum (Waite, 1896) · The Hermetic Museum (Waite, 1893) · Ripley Reviv'd and other tracts of Philalethes and Vaughan (1678) · The Magical Writings of Thomas Vaughan (Waite, 1888)

→ Related: Hermes Trismegistus · Astrology · Robert Fludd · Theosophy · Gnosis · Latin Medieval Alchemy · Islamic Astrology Alchemy Astral Magic · Zosimos Of Panopolis · Paracelsus · Renaissance Hermetism · Taoism · Carl Jung · Isaac Newton