Jabir ibn Hayyan
Abu Mūsā Jābir ibn Hayyān (Arabic: جابر بن حیانl Persian: جابر بن حیان, often given the nisbas al-Bariqi, al-Azdi, al-Kufi, al-Tusi or al-Sufi; fl. c. 721 – c. 815), also known by the Latinization Geber (//), was a polymath: a chemist and alchemist, astronomer and astrologer, engineer, geographer, philosopher, physicist, and pharmacist and physician. Born in Tus, he later traveled to Yemen and Kufa where he lived most of his life. He has been described as the father of early chemistry.
|Jabir ibn Hayyan|
15th-century European portrait of "Geber", Codici Ashburnhamiani 1166, Biblioteca Medicea Laurenziana, Florence
|Born||Abu Musa Jabir ibn Hayyan
c. 721 CE
Tus, Khurasan, Umayyad Caliphate
|Died||c. 815 CE
|Era||Islamic Golden Age|
|Main interest(s)||Alchemy and Chemistry, Astronomy, Astrology, Medicine and Pharmacy, Philosophy, Physics, philanthropist|
|Notable work(s)||Kitab al-Kimya, Kitab al-Sab'een, Book of the Kingdom, Book of the Balances, Book of Eastern Mercury, etc.|
As early as the 10th century, the identity and exact corpus of works of Jabir was in dispute in Islamic circles. His name was Latinized as "Geber" in the Christian West and in 13th-century Europe an anonymous writer, usually referred to as Pseudo-Geber, produced alchemical and metallurgical writings under the pen-name Geber.
In 988 Ibn al-Nadim compiled the Kitab al-Fihrist which mentions Jabir as a spiritual follower and as a companion to Jafar as-Sadiq, the sixth Shia Imam. In another reference al-Nadim reports that a group of philosophers claimed Jabir was one of their own members. Another group, reported by al-Nadim, says only The Large Book of Mercy is genuine and that the rest are pseudographical. Their assertions are rejected by al-Nadim. Joining al-Nadim in asserting a real Jabir; Ibn-Wahshiyya ("Jaber ibn Hayyn al-Sufi ...book on poison is a great work...") Rejecting a real Jabir; (the philosopher c. 970) Abu Sulayman al-Mantiqi claims the real author is one al-Hasan ibn al-Nakad al-Mawili. The 14th century critic of Arabic literature, Jamal al-Din ibn Nubata al-Misri declares all the writings attributed to Jabir doubtful.
Life and backgroundEdit
According to the philologist-historian Paul Kraus (1904-1944), Jabir cleverly mixed in his alchemical writings unambiguous references to the Ismaili or Qarmati movement. Kraus wrote, “Let us first notice that most of the names we find in this list have undeniable affinities with the doctrine of Shi'i Gnosis, especially with the Ismaili system”. Henry Corbin believes that Jabir ibn Hayyan was an Ismaili. Jabir was a natural philosopher who lived mostly in the 8th century; he was born in Tus, Khorasan, in Persia, well known as Iran then ruled by the Umayyad Caliphate. Jabir in the classical sources has been variously attributed as al-Azdi, al-Kufi, al-Tusi or al-Sufi. And sometimes also, al-Tartusi, al-Tarsusi or al-Harrani. There is a difference of opinion as to whether he was an Arab from Kufa who lived in Khurasan, or a Persian from Khorasan who later went to Kufa or whether he was, as some have suggested, of Syrian Sabian origin and later lived in Persia and Iraq. In some sources, he is reported to have been the son of Hayyan al-Azdi, a pharmacist of the Arabian Azd tribe who emigrated from Yemen to Kufa (in present-day Iraq) during the Umayyad Caliphate. while Henry Corbin believes Geber seems to have been a non-Arab client of the 'Azd tribe. Hayyan had supported the Abbasid revolt against the Umayyads, and was sent by them to the province of Khorasan to gather support for their cause. He was eventually caught by the Umayyads and executed. His family fled to Yemen, perhaps to some of their relatives in the Azd tribe, where Jabir grew up and studied the Quran, mathematics and other subjects. Jabir's father's profession may have contributed greatly to his interest in alchemy.
After the Abbasids took power, Jabir went back to Kufa. He began his career practicing medicine, under the patronage of a Vizir (from the noble Persian family Barmakids) of Caliph Harun al-Rashid. His connections to the Barmakid cost him dearly in the end. When that family fell from grace in 803, Jabir was placed under house arrest in Kufa, where he remained until his death.
The Jabirian corpusEdit
In total, nearly 3,000 treatises and articles are credited to Jabir ibn Hayyan. Following the pioneering work of Paul Kraus, who demonstrated that a corpus of some several hundred works ascribed to Jābir were probably a medley from different hands,:3 mostly dating to the late 9th and early 10th centuries, many scholars believe that many of these works consist of commentaries and additions by his followers, particularly of an Ismaili persuasion. On the other hand, contemporary scholar Syed Nomanul Haq refuses the multiplicity of authors hypothesis, and says that Kraus has misrepresented the Jabirian corpus for three main reasons : a) he hasn't inspected the bibliographies correctly, considering that there have been many leaps (in one instance, we have no titles between 500 and 530), so, all in all, the numbers are more over 500 than close to 3000 ; b) in many cases, a part or chapter of a book has been counted as a book itself, like with the Kitab al-Jumal al-'Ishrin (book of twenty maxims), which has been counted for 20 books and c) finally, many of the supposed "books" are not so in the formal sense, the Kitab al-Sahl occupying a single paragraph and many others few folios. Syed Nomanul Haq concludes that "this rough investigation makes it abundantly clear that we should view with a great deal of suspicion any arguments for a plurality of authors which is based on Kraus’ inflated estimate of the volume of the Jabirian corpus."
The scope of the corpus is vast: cosmology, music, medicine, magic, biology, chemical technology, geometry, grammar, metaphysics, logic, artificial generation of living beings, along with astrological predictions, and symbolic Imâmî myths.:5
- The 112 Books dedicated to the Barmakids, viziers of Caliph Harun al-Rashid. This group includes the Arabic version of the Emerald Tablet, an ancient work that proved a recurring foundation of and source for alchemical operations. In the Middle Ages it was translated into Latin (Tabula Smaragdina) and widely diffused among European alchemists.
- The Seventy Books, most of which were translated into Latin during the Middle Ages. This group includes the Kitab al-Zuhra ("Book of Venus") and the Kitab Al-Ahjar ("Book of Stones").
- The Ten Books on Rectification, containing descriptions of alchemists such as Pythagoras, Socrates, Plato and Aristotle.
- The Books on Balance; this group includes his most famous 'Theory of the balance in Nature'.
Jabir states in his Book of Stones (4:12) that "The purpose is to baffle and lead into error everyone except those whom God loves and provides for". His works seem to have been deliberately written in highly esoteric code (see steganography), so that only those who had been initiated into his alchemical school could understand them. It is therefore difficult at best for the modern reader to discern which aspects of Jabir's work are to be read as ambiguous symbols, and what is to be taken literally. Because his works rarely made overt sense, the term gibberish is believed to have originally referred to his writings (Hauck, p. 19).
Jabir's interest in alchemy was inspired by his teacher Ja'far as-Sadiq. When he spoke about alchemy, he would say "my master Ja'far as-Sadiq taught me about calcium, evaporation, distillation and crystallization, and everything I learned in alchemy was from my master Ja'far as-Sadiq." Imam Jafar was famed for his depth and breadth of knowledge. In addition to his knowledge of Islamic sciences, Imam Jafar was well educated in natural sciences, mathematics, philosophy, astronomy, anatomy, chemistry (alchemy), and other subjects. The foremost Islamic alchemist Jabir bin Hayyan was his most prominent student. Other famous students of Imam Jafar were Imam Abu Hanifa and Imam Malik Ibn Anas, the founders of two Sunni schools of jurisprudence, and Wasil ibn Ata, the founder of the Mutazilite school of Islamic thought.
Imam Jafar was known for his liberal views on learning, and was keen to debate with scholars of different faiths and of different beliefs. Some Islamic scholars have gone so far as to call Imam Jafar Saddiq as the root of most of Islamic jurisprudence, having a massive influence on Hanafi, Maliki and Shia schools of thought extending well into mainstream Hanbali and Shafi'i thought. Imam Jafar also attained a surpassing knowledge in astronomy and in the science of medicine.
Jabir professed to have drawn his alchemical inspiration from earlier writers, both legendary and historic, on the subject. In his writings, Jabir pays tribute to Egyptian and Greek alchemists Zosimos, Democritus, Hermes Trismegistus, Agathodaemon, but also Plato, Aristotle, Galen, Pythagoras, and Socrates, as well as the commentators Alexander of Aphrodisias, Simplicius, Porphyry and others.:5
A huge pseudo-epigraphic literature of alchemical books was composed in Arabic, among which the names of Persian authors also appear like Jāmāsb, Ostanes, Mani, testifying that alchemy-like operations on metals and other substances were also practiced in Persia. The great number of Persian technical names (zaybaq = mercury, nošāder = sal-ammoniac) also corroborates the idea of an important Iranian root of medieval alchemy. Ibn al-Nadim reports a dialogue between Aristotle and Ostanes, the Persian alchemist of Achaemenid era, which is in Jabirian corpus under the title of Kitab Musahhaha Aristutalis. Ruska had suggested that the Sasanian medical schools played an important role in the spread of interest in alchemy. He emphasizes the long history of alchemy, "whose origin is Arius ... the first man who applied the first experiment on the [philosopher's] stone... and he declares that man possesses the ability to imitate the workings of Nature" (Nasr, Seyyed Hussein, Science and Civilization of Islam).
Jabir's alchemical investigations ostensibly revolved around the ultimate goal of takwin — the artificial creation of life. The Book of Stones includes several recipes for creating creatures such as scorpions, snakes, and even humans in a laboratory environment, which are subject to the control of their creator. What Jabir meant by these recipes is unknown.
Jabir's alchemical investigations were theoretically grounded in an elaborate numerology related to Pythagorean and Neoplatonic systems. The nature and properties of elements was defined through numeric values assigned the Arabic consonants present in their name, a precursor to the character notation used today.
By Jabirs' time Aristotelian physics had become Neoplatonic. Each Aristotelian element was composed of these qualities: fire was both hot and dry, earth, cold and dry, water cold and moist, and air, hot and moist. This came from the elementary qualities which are theoretical in nature plus substance. In metals two of these qualities were interior and two were exterior. For example, lead was cold and dry and gold was hot and moist. Thus, Jabir theorized, by rearranging the qualities of one metal, a different metal would result. Like Zosimos, Jabir believed this would require a catalyst, an al-iksir, the elusive elixir that would make this transformation possible — which in European alchemy became known as the philosopher's stone.
According to Jabir's mercury-sulfur theory, metals differ from each in so far as they contain different proportions of the sulfur and mercury. These are not the elements that we know by those names, but certain principles to which those elements are the closest approximation in nature. Based on Aristotle's "exhalation" theory the dry and moist exhalations become sulfur and mercury (sometimes called "sophic" or "philosophic" mercury and sulfur). The sulfur-mercury theory is first recorded in a 7th-century work Secret of Creation credited (falsely) to Balinus (Apollonius of Tyana). This view becomes widespread. In the Book of Explanation Jabir says
the metals are all, in essence, composed of mercury combined and coagulated with sulphur [that has risen to it in earthy, smoke-like vapors]. They differ from one another only because of the difference of their accidental qualities, and this difference is due to the difference of their sulphur, which again is caused by a variation in the soils and in their positions with respect to the heat of the sun
Holmyard says that Jabir proves by experiment that these are not ordinary sulfur and mercury.
- "Spirits" which vaporise on heating, like arsenic (realgar, orpiment), camphor, mercury, sulfur, sal ammoniac, and ammonium chloride.
- "Metals", like gold, silver, lead, tin, copper, iron, and khar-sini (Chinese iron)
- Non-malleable substances, that can be converted into powders, such as stones.
The origins of the idea of chemical equivalents might be traced back to Jabir, in whose time it was recognized that "a certain quantity of acid is necessary in order to neutralize a given amount of base."[verification needed]
Laboratory equipment and materialEdit
The Jabirian corpus is renowned for its contributions to alchemy. It shows a clear recognition of the importance of experimentation, "The first essential in chemistry is that thou shouldest perform practical work and conduct experiments, for he who performs not practical work nor makes experiments will never attain to the least degree of mastery." He is credited with the use of over twenty types of now-basic chemical laboratory equipment, such as the alembic and retort, and with the description of many now-commonplace chemical processes – such as crystallisation, various forms of alchemical "distillation", and substances citric acid (the sour component of lemons and other unripe fruits), acetic acid (from vinegar) and tartaric acid (from wine-making residues), arsenic, antimony and bismuth, sulfur, and mercury that have become the foundation of today's chemistry.
According to Ismail al-Faruqi and Lois Lamya al-Faruqi, "In response to Jafar al-Sadik's wishes, [Jabir ibn Hayyan] invented a kind of paper that resisted fire, and an ink that could be read at night. He invented an additive which, when applied to an iron surface, inhibited rust and when applied to a textile, would make it water repellent."
Mineral acids and alcoholEdit
Directions to make mineral acids such as sulfuric acid, nitric acid and aqua regis appear in the Arabic Jabirian corpus, and later in the pseudo-Geberian works Liber Fornacum, De inventione perfectionis, and the Summa.
Whether there was a real Jabir in the 8th century or not, his name would become the most famous in alchemy. He paved the way for most of the later alchemists, including al-Kindi, al-Razi, al-Tughrai and al-Iraqi, who lived in the 9th–13th centuries. His books strongly influenced the medieval European alchemists and justified their search for the philosopher's stone. In the Middle Ages, Jabir's treatises on alchemy were translated into Latin and became standard texts for European alchemists. These include the Kitab al-Kimya (titled Book of the Composition of Alchemy in Europe), translated by Robert of Chester (1144); and the Kitab al-Sab'een (Book of Seventy) by Gerard of Cremona (before 1187). Marcelin Berthelot translated some of his books under the fanciful titles Book of the Kingdom, Book of the Balances, and Book of Eastern Mercury. Several technical Arabic terms introduced by Jabir, such as alkali, have found their way into various European languages and have become part of scientific vocabulary.
Max Meyerhoff states the following on Jabir ibn Hayyan: "His influence may be traced throughout the whole historic course of European alchemy and chemistry."
The historian of chemistry Erick John Holmyard gives credit to Jabir for developing alchemy into an experimental science and he writes that Jabir's importance to the history of chemistry is equal to that of Robert Boyle and Antoine Lavoisier. The historian Paul Kraus, who had studied most of Jabir's extant works in Arabic and Latin, summarized the importance of Jabir to the history of chemistry by comparing his experimental and systematic works in chemistry with that of the allegorical and unintelligible works of the ancient Greek alchemists. The word gibberish is theorized to be derived from the Latinised version off Jabir's name, in reference to the incomprehensible technical jargon often used by alchemists, the most famous of whom was Jabir. Other sources such as the Oxford English Dictionary suggest the term stems from gibber; however, the first known recorded use of the term "gibberish" was before the first known recorded use of the word "gibber" (see Gibberish).
The Geber problemEdit
The identity of the author of works attributed to Jabir has long been discussed. According to a famous controversy, pseudo-Geber has been considered as the unknown author of several books in Alchemy. This was first independently suggested, on textual and other grounds, by the 19th-century historians Hermann Kopp and Marcellin Berthelot. Jabir, by reputation the greatest chemist of Islam, has long been familiar to western readers under the name of Geber, which is the medieval rendering of the Arabic Jabir, the Geber of the Middle Ages. The works in Latin corpus were considered to be translations until the studies of Kopp, Hoefer, Berthelot, and Lippman. Although they reflect earlier Arabic alchemy they are not direct translations of "Jabir" but are the work of a 13th-century Latin alchemist. Eric Holmyard says in his book Makers of Chemistry Clarendon press.(1931).
There are, however, certain other Latin works, entitled The Sum of Perfection, The Investigation of Perfection, The Invention of Verity, The Book of Furnaces, and The Testament, which pass under his name but of which no Arabic original is known. A problem which historians of chemistry have not yet succeeded in solving is whether these works are genuine or not.
However, by 1957 AD when he (Holmyard) wrote Alchemy. Courier Dover Publications. p. 134. ISBN 978-0-486-26298-7. Holmyard had abandoned the idea of an Arabic original. (although they are based on "Islamic" alchemical theories)
The question at once arises whether the Latin works are genuine translations from the Arabic, or written by a Latin author and, according to common practice, ascribed to Jabir in order to heighten their authority. That they are based on Muslim alchemical theory and practice is not questioned, but the same may be said of most Latin treatises on alchemy of that period; and from various turns of phrase it seems likely that their author could read Arabic. But the general style of the works is too clear and systematic to find a close parallel in any of the known writings of the Jabirian corpus, and we look in vain in them for any references to the characteristically Jabirian ideas of "balance" and the alphabetic numerology. Indeed for their age they have a remarkably matter of fact air about them, theory being stated with a minimum of prolixity and much precise practical detail being given. The general impression they convey is that they are the product of an occidental rather than an oriental mind, and a likely guess would be that they were written by a European scholar, possibly in Moorish Spain. Whatever their origin, they became the principal authorities in early Western alchemy and held that position for two or three centuries.
The question of Pseudo-Gebers identity is still in dispute (1962). It is said that Geber, the Latinized form of "Jabir," was adopted presumably because of the great reputation of a supposed 8th-century alchemist by the name of Jabir ibn Hayyan. About this historical figure, however, there was considerable uncertainty a century ago, and the uncertainty continues today. This is sometimes called the "Geber-Jābir problem". It is possible that facts mentioned in the Latin works, ascribed to Geber and dating from the twelfth century and later, may be placed to Jabir's credit.
In 2005, the historian Ahmad Y. Al-Hassan pointed out that earlier Arabic texts prior to the 13th century, including the works of Jabir and Al-Razi, already contained detailed descriptions of substances such as nitric acid, aqua regia, vitriol, and various nitrates. In 2009, Al-Hassan criticized Berthelot's original hypothesis and, on textual grounds, argued that the Pseudo-Geber Corpus was originally written in Arabic. Al-Hassan criticized Berthelot's lack of familiarity with the complete Arabic corpus and pointed to various Arabic Jabirian manuscripts which already contain much of the theories and practices that Berthelot previously attributed to the Latin corpus. Regardless of the identity of pseudo-Geber, the contents of the Pseudo-Geber Corpus are mostly derived from earlier Arabic alchemy, including the work of Jabir as well as other Arabic authors such as Al-Razi.
In popular cultureEdit
- Geber is mentioned in Paulo Coelho's 1993 bestseller, The Alchemist.
- Geber is mentioned in H. P. Lovecraft's novel The Case of Charles Dexter Ward.
- Jabbir is said to be the creator of a (fictional) mystical chess set in Katherine Neville's novels The Eight and The Fire.
- In S.H.I.E.L.D, Jabir appears as the 8th century leader of the organization.
- Jabir is mentioned in the American sitcom The Big Bang Theory, in the episode "The Guitarist Amplification".
- Jabir Ibn Hayyan is mentioned in the graphic novel Habibi by Craig Thompson, p. 253-254.
- In the DC comic book title Demon Knights, the 11th century engineer Al-Jabr appears to be based on Jabir Ibn Hayyan.
- Jabir Ibn Hayyan is mentioned in Satyajit Ray's short stories of Professor Shonku.
The Pseudo-Geber corpusEdit
The Latin corpus consists of books with an author named "Geber" for which researchers have failed to find a text in Arabic. These books were heavily influenced by Arabic books written by Jabir, the "real" Geber, and by Al Razi and others. They are available in Latin only, date from about the year 1310, and their author is identified as "Geber" or pseudo-Geber:
- Summa perfectionis magisterii ("The Height of the Perfection of Mastery").
- Liber fornacum ("Book of Furnaces"),
- De investigatione perfectionis ("On the Investigation of Perfection"), and
- De inventione veritatis ("On the Discovery of Truth").
- Testamentum gerberi
The Liber fornacum, De investigatione perfectionis and De inventione veritatis "are merely extracts from or summaries of the Summa Perfectionis Magisterii with later additions." which may have been compiled by later writers.
English translations of Jabir and the Pseudo-GeberEdit
- Syed Nomanul Haq, Names, Natures and Things: The Alchemists Jabir ibn Hayyan and his Kitab al-Ahjar (Book of Stones), [Boston Studies in the Philosophy of Science p. 158] (Dordrecht: Kluwer Academic Publishers, 1994), ISBN 0-7923-3254-7.
- Donald Routledge Hill, 'The Literature of Arabic Alchemy' in Religion: Learning and Science in the Abbasid Period, ed. by M.J.L. Young, J.D. Latham and R.B. Serjeant (Cambridge University Press, 1990) pp. 328–341, esp. pp 333–5.
- E. J. Holmyard (ed.) The Arabic Works of Jabir ibn Hayyan, translated by Richard Russel in 1678. New York, E. P. Dutton (1928); Also Paris, P. Geuther.
- Geber and William R. Newman, The Summa Perfectionis of Pseudo-Geber: A Critical Edition, Translation and Study ISBN 978-90-04-09464-2.
- William R. Newman, New Light on the Identity of Geber, Sudhoffs Archiv, 1985, Vol.69, pp. 76–90.
- Tus, V. Minorsky, The Encyclopaedia of Islam, Vol. X, ed. P.J. Bearman, T. Bianquis, C.E. Bosworth, E. van Donzel and W.P. Heinrichs, (Brill, 2000), 741.
- "Abu Musa Jabir ibn Hayyan". Encyclopædia Britannica Online. Retrieved 11 February 2008.
- Derewenda, Zygmunt S. (2007), "On wine, chirality and crystallography", Acta Crystallographica A, 64: 246–258 , Bibcode:2008AcCrA..64..246D, doi:10.1107/s0108767307054293, PMID 18156689
- John Warren (2005). "War and the Cultural Heritage of Iraq: a sadly mismanaged affair", Third World Quarterly, Volume 26, Issue 4 & 5, p. 815-830.
- https://web.archive.org/web/20080630061235/http://www.unhas.ac.id/~rhiza/saintis/haiyan.html, « Jabir Ibn Haiyan, known by the name of the alchemist Geber of the Middle Ages, is generally known as the Father of Chemistry «
- Brabner, Tod (2005). "Jabir ibn Hayyam (Geber)". In Thomas F. Glick; Steven John Livesey; Faith Wallis. Medieval Science, Technology, and Medicine: An Encyclopedia. Psychology Press. pp. 279–281. ISBN 978-0-415-96930-7.
- Principe, Lawrence (2013). "2". The Secrets of Alchemy. Chicago: University of Chicago. ISBN 0226682951., « Jabir Ibn Haiyan, known by the name of the alchemist Geber of the Middle Ages, is generally known as the Father of Chemistry »
- Haq, Syed Nomanul (28 February 1995). Names, Natures and Things: The Alchemist Jabir Ibn Hayyan and His Kitab Al-Ahjar (Book of Stones). Springer. ISBN 978-0-7923-3254-1.
- Paul Kraus "Dignitaires de la hierarchie religieuse selon Gabir ibn Hayyan', Bulletin de l'Institut Francais d'Archeologie Orientale de Caire (1942): 85.
- Diana, Steigerwald (2015). Imamology in Ismaili Gnosis. New Delhi 110 002: Manohar Publishers & Distributors. p. 141. ISBN 978-93-5098-081-1.
- S.N. Nasr, "Life Sciences, Alchemy and Medicine", The Cambridge History of Iran, Cambridge, Volume 4, 1975, p. 412: "Jabir is entitled in the traditional sources as al-Azdi, al-Kufi, al-Tusi, al-Sufi. There is a debate as to whether he was an Arab from Kufa who lived in Khurasan, or a Persian from Khorasan who later went to Kufa or whether he was, as some have suggested, of Syrian origin and later lived in Persia and Iraq".
- Selin, Helaine (2008). Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures. Springer Science & Business Media. p. 101."Elsewhere his name is given as Abu Musa, and he is variously described as Tusi, Tartusi or Tarsusi, Harranian and from Khorasan (Holmyard 1923: 47)."
- Holmyard, Eric John, Introduction to The Works of Geber, translated by Richard Russell. (London: Dent, 1928), p. vii: "Abu Musa Jabir ibn Hayyan, generally known merely as Jabir, was the son of a druggist belonging to the famous South Arabian tribe of Al-Azd. Members of this tribe had settled at the town of Kufa, in Iraq, shortly after the Muhammadan conquest in the seventh century A.D., and it was in Kufa that Hayyan the druggist lived."
- George Sarton, Introduction to the History of Science, Pub. for the Carnegie Institution of Washington, by the Williams & Wilkins Company, 1931, vol.2 pt.1, page 1044: "Was Geber, as the name would imply, the Persian alchemist Jabir ibn Haiyan?"
- William R. Newman, Gehennical Fire: The Lives of George Starkey, an American Alchemist in the Scientific Revolution, Harvard University Press, 1994. p. 94: "According to traditional bio-bibliography of Muslims, Jabir ibn Hayyan was a Persian alchemist who lived at some time in the eighth century and wrote a wealth of books on virtually every aspect of natural philosophy."
- Cyril Glassé; Huston Smith, The New Encyclopedia of Islam, (2003), pub.Rowman Altamira, page 233: "Jabir ibn Hayyan. A celebrated alchemist, not a Muslim, but a Harranian from the community of the Harranian "Sabians" of North Syria."
- Holmyard, Eric John (1931). Makers of Chemistry. The Clarendon press.
- Henry Corbin, "The Voyage and the Messenger: Iran and Philosophy", Translated by Joseph H. Rowe, North Atlantic Books, 1998. p. 45: "The Nisba al-Azdin certainly does not necessarily indicate Arab origin. Geber seems to have been a client of the Azd tribe established in Kufa."
- E. J. Holmyard (ed.) The Arabic Works of Jabir ibn Hayyan, translated by Richard Russell in 1678. New York, E. P. Dutton (1928); Also Paris, P. Geuther.
- Holmyard, E. J. (2012). Alchemy. Courier Corporation. ISBN 9780486151144.
- Haq, Syed N. (1994). Names, Natures and Things. Dordrecht, The Netherlands: Boston Studies in the Philosophy of Science, Volume 158/ Kluwar Academic Publishers. pp. 14–20. ISBN 0-7923-3254-7.
- "Iranica JAʿFAR AL-ṢĀDEQ iv. And Esoteric sciences". Retrieved 11 June 2011.
The historical relations between Jaʿfar al-Ṣādeq and Jāber b. Ḥayyān remain very controversial, as they are linked to still unresolved questions about dating, composition, and authorship of the texts attributed to Jāber. Scholars such as Julius Ruska, Paul Kraus, and Pierre Lory consider Jaʿfar al-Ṣādeq’s involvement in the transmission of alchemical knowledge as a literary fiction, whereas Fuat Sezgin, Toufic Fahd, and Nomanul Haq are rather inclined to accept the existence of alchemical activity in Medina in Jaʿfar al-Ṣādeq’s time, although they remain cautious regarding the authenticity of the attribution of the Jaberian corpus to Jāber b. Ḥayyān and of the alchemical works to Jaʿfar al-Ṣādeq (Ruska, 1924, pp. 40–52; idem, 1927, pp. 264–66; Kraus, I, pp. LV-LVII; Lory, pp. 14–21, 57–59, 101–7; Sezgin, I, p. 529, IV, pp. 128–31; Fahd, 1970, pp. 139–41; Nomanul Haq, pp. 3–47).
- Josef W. Meri; Jere L. Bacharach (2006). Medieval Islamic Civilization. Taylor and Francis. p. 25. ISBN 0-415-96691-4.
- Jabir Ibn Hayyan. Vol. 1. Le corpus des ecrits jabiriens. George Olms Verlag, 1989
- Paul Kraus, Jabir ibn Hayyan: Contribution à l'histoire des idées scientifiques dans l'Islam, cited Robert Irwin, 'The long siesta' in Times Literary Supplement, 25/1/2008 p.8
- Syed Nomanul Haq, Names, Natures and Things: The Alchemist Jābir ibn Hayyān and his Kitāb al-Ahjār (Book of Stones), Springer Science & Business Media (2012), pp. 11-12
- Julian, Franklyn, Dictionary of the Occult, Kessinger Publishing, 2003, ISBN 0-7661-2816-4, ISBN 978-0-7661-2816-3, p. 9.
- KIMIĀ ("Alchemy"), Encyclopedia Iranica, Retrieved on 19 November 2017.
- "History of Islamic Science" (PDF). University of Southern California. Archived from the original (PDF) on 7 October 2013.
- Holmyard, E. J. (1931). Makers of Chemistry. Oxford: Clarendon Press. pp. 57–8.
- Norris, John (March 2006). "The Mineral Exhalation Theory of Metallogenesis in Pre-Modern Mineral Science". Ambix. Society for the History of Alchemy and Chemistry. 53: 43–65. doi:10.1179/174582306X93183.
- Georges C. Anawati, "Arabic alchemy", in R. Rashed (1996), The Encyclopaedia of the History of Arabic Science, Vol. 3, p. 853-902 .
- Schufle, J. A.; Thomas, George (Winter 1971). "Equivalent Weights from Bergman's Data on Phlogiston Content of Metals". Isis. 62 (4): 500. doi:10.1086/350792.
- Holmyard, E. J. (1931). Makers of Chemistry. Oxford: Clarendon Press. p. 60.
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