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Cultural Background
Three of the 'Abbasid Caliphs distinguished themselves greatly in this
respect: the second, al-Mansur (754-775), who founded Baghdad, and, even more
so, the fifth, Harun-al-Rashid whose fame has been immortalized by many legends
and the seventh, Al-Ma'mun (813-833). All of them encouraged the work of the
translators who were busily unlocking the treasures of Greek knowledge.
First
of all the word 'alchemy', as the article al- indicates, is Arabic (al-klmya').
The origin of the word kimya', pre-Arabic, is arguable. Several more or less
plausible or legendary hypotheses have been advanced. For some the word came
from the Egyptian kemi (black), whence the Greek kemia which might indicate two
things:
Egypt, 'the black land' according to Plutarch - alchemy would be
preeminently the science of Egypt; 'the Black', the original matter of
transmutation, i.e. the art of treating 'black metal' to produce precious
metals.
For others, the word 'chemy' could have come from the Greek khymeia,
'fusion', i.e. the art of melting gold and silver. A Byzantine text states that
Diocletian ordered the destruction of Egyptian books relating to khymeia, to the
'fusion' of gold and silver.
Islamic Alchemy In Western Writings
Following the work of French chemist Marcellin Berthelot on alchemy, many
researchers on the basis of original texts discovered and published, became
interested in the study of alchemy with the Arabs: Lippmann, Wiedemann,
Ganzenmuller, Stapleton, Holmyard, Plessner and especially Paul Kraus whose work
about Jabir ibn Hayyan is still a classic in this subject. More recently Henry
Corbin in his research on Shi'ism has tried to give an esoteric interpretation
of the great alchemy texts. His ideas created a school of thought and some
contemporary authors, Roger Deladriere and Pierre Lory for instance, did not
escape his influence. Arabic alchemy is no longer the 'terra incognita' which, a
century ago, challenged the insight of historians of science.
The large
quantity of accumulated facts suggested a synthetic presentation to Fuat Sezgin
and Manfred Ullmann. The former produced his in the frame of his series
Geschichte des arabischen Schrifttums; the fourth volume, appearing in
1971, dedicated several pages to alchemy. In his turn, Ullmann, in his book
Die Natur- und Geheimwissenschaften in Islam, appearing in 1972,
presented in about a hundred pages the whole of Arabic alchemic literature
studying successively the translations and pseudoepigraphs from Greek authors,
Egyptian, Indian, Persian, Jewish and Christian sources, then alchemy theories,
the research of the elixir, laboratory experiments and the material employed,
and the whole is copiously documented.
Pythagoras is often mentioned in Arabic philosophy and in gnomic literature. Jaldaki calls him al-mu’allim al-awwal because he acquired the science from hermetic texts. Jabir refers to him as an alchemic author and speaks of Ta'ifat Fthaghurus, the school of Pythagoras, and of his book Kitab almu’sahhahat (Book of Adjustments). Other quotations refer to Pythagoras's theory of numbers. Tughra'i mentions him several times and refers to his treatise about 'natural numbers'. The fragments of texts which are attributed to him could have come either from Turba philosophorum, where he is among the participants, or from other texts.
Archelaos
Archelaos is mentioned in the Fihrist (p. 352, 25) and by al-Kindi in his Fada'il Misr (p. 191, 11). He is considered as the disciple of Anaxagoras and the teacher of Socrates. He should not be confused with his Byzantine namesake, author of an alchemic poem of 336 verses. The Arabs consider him as the author of Turba philosophorum (Mu.shafal aljama'a) and attribute to him the Risalat madd al-ba hr dhat al-ru'ya, a text which had been revealed in a vision about the tide and which was translated into Latin with the title Visio Arislei. This text is introduced as the continuation of Turba philosophorum.
Socrates
Socrates is considered not only as a wise man but also as an alchemist. Jabir calls him 'the father and mother of all philosophers' and considers him as the prototype of the real chemist. From Socrates to Jabir, there is a continuous tradition which attributes entire treatises to him. Jabir affirms that Socrates was opposed to the writing down of alchemic knowledge to avoid its exposition to the ignorance of the masses. Most references to Socrates refer to his arithmetical speculations (theory of the balance) and also to artificial generation.
Plato (Aflatun)
Olympiodorus already (at the end of the sixth century) considered Plato as an
alchemist and Ibn al-Nadlm mentions him in the list of alchemists. Butrus
al-Ilmlml mentions an alchemic device called ,hammam Aflatun (Plato's
bath).
Among the books attributed to him by the Arabs we can mention the
Summa Platonis of which we only have the Latin version. There is a
commentary to this book - the Kitab al-Rawabi' - whose Arabic text was
edited by Badawi and whose Latin translation is known by the name Liber
quartorum. The contents of this work are mainly alchemic but it contains
also information on geometry, physiology and astrology. The ancient authors
cited are Plato, Aristotle, Ptolemy, Hipparchus, Proclus, the Sophists, Ostanes,
Hermes, Asclepius and Hippocrates.
We note also that Plato takes up the story
in the forty-fifth discourse in Turba philosophorum; this speech ends
with the phrase al-tabi'a tulzimu-ltabi'ata wa-l-tabi'atu taqharu-i-tabSata
wa-i-tabi'ata tafra hu li-l-tabl'ati (nature necessarily accompanies nature,
nature overcomes nature, nature rejoices in nature), an aphorism often mentioned
in Arabic alchemic literature under the name of Plato or anonymously. It comes
from the Physika kai Mystika of Democritus.
Aristotle (Aristu)
Aristotle is considered as an alchemist author not so much because of his
fourth book Meteorologica but because of his reputation as an all-round
scholar. He wrote a book on alchemy for his disciple Alexander. In 618, by order
of Heraclius, the book was translated into Syriac by the monk Jean, and the
Bishop of Nisibis, Eliyya bar Shinaya, made sure of its orthodoxy. Finally
Abdishu' bar Brika, Bishop of Sinjar, and later of Nisibis, made a commentary on
it in Syriac of which there still exists an Arabic translation. The text
contains an introduction in which Abdlshu reports the legendary history of the
text followed by a Ietter from Alexander to Aristotle where the former poses
questions to which the latter responds. This dialogue is called sahifat kanz
Allah al-akbar (Epistle of the Great Treasure of God). it includes three
chapters: (1) About the great principles of alchemy; (2) Alchemic operations;
(3) The elixir. Pythagoras, Democritus, Asclepiades, Hermes, Plato, Ostanes and
Balmas are mentioned in the text.
We also have a dialogue between Aristotle
and the Indian Yuhin sent by the Indian king as messenger to Alexander. Ibn
al-Nadim reports this dialogue to Ostanes. Finally in the Jabirian corpus there
is a Kitab Musahhaha Aristutalis.
Porphyry (d. c. 303)
Porphyry is often mentioned, especially by Jabir who attributes artificial generation to him. The later alchemists such as Tughra'i and Jaldakl also mention him.
Galen (Jahnus) (d. c. 199 AD)
According to a note in Kitab al-hajar 'ala ra'y Balinas, Galen was interested in alchemy before dedicating himself to philosophy. In fact, he is sometimes mentioned as an authority on alchemy' and fragments of alchemy texts attributed to Galen can be found in the National Library of Cairo.
Bolos the Democritean of Mendes
Bolos the Democritean lived in the second century before Christ. The work of
this scholar is varied: alchemy, astrology, medicine. He is probably at the
origin of the alchemic tradition transmitted by the work of
pseudo-Democritus: Physika kai Mystika. He expounds there the four
traditional branches of alchemy: gold, silver, precious stones, dyes. One can
find the famous formula which aims to synthesize the quintessence of the
alchemic art: 'one nature is charmed by another nature, one nature overcomes
another nature, one nature dominates another nature'.
How can this axiom be
explained in practical terms? Zosimus, commentator of the fourth century,
explains: 'we can proceed with the transmutation of common metal into noble
metal by working alloys or by purifying the metals, basing ourselves on the
affinity between metals, knowing their "sympathies and antipathies". Raw
material, sympathy, transmutation by qualitative change (of the colours), we
have thus the principles that constitute alchemy.' Thus the school of Bolos
brings to the Egyptian technique a philosophical reasoning which will open the
way to the science of the Great Work. 'Once again', says Festugiere, 'we see the
union of the Greek spirit and the Oriental art.' The art exists, from ancient
times; the goldsmiths of Egypt work metals, stones and purple. But although they
have innumerable recipes transmitted from father to son and kept in temple
archives, they lack a reasoning method. No-one has yet joined these practices
with the principles which explain and justify them. There is practice but not
theory. This is what the Greek spirit provides. The merit of Bolos of Mendes was
to join theory and experiment and thus found a pseudoscience which would cross
the ages up to modern chemistry.
About the same time alchemy was practiced in
most Egyptian towns. This first alchemy is a mixture of hermetic or Gnostic
elements and old Greek philosophy: Heraclitus, Empedocles and their speculations
about the four elements, Parmenides with his theory on the unity of the whole,
the Platonic cosmogony of Timaeus.
Zosimus
The most famous character of this time is Zosimus of Panopolis (Akhmim, in Upper Egypt). He probably lived at the end of the third and beginning of the fourth century; he wrote an encyclopedia with twenty-eight books on alchemy which he dedicated to his sister Theosebeia. Some sections are original but most of it reproduces old texts lost to the present time. His name in Arabic, because of the ambiguity of the writing, is often transcribed under different forms: Risimus, Rusim, Rusam. Al-Qifli affirms that he lived before Islam.
Some of his aphorisms and anecdotes are reported by Arab authors such as Jahiz, Ibn Durayd, al-Tawhidi,. Ibn Arfa' Ra's calls him 'the universal wise man and the brilliant flame' (al-hakim aljami' wa-i-shihab al-lami'). Ibn al-Nadlm mentions four books from Zosimus: Kitab al-mafatih f-l-santa; Kitab al-sab’tuna risala; Kitab al-'anasir; Kitab ila jamb alhukama' fi-lsan'a.
The epistle from Zosimus to Theosebeia has the title Mushaf al-suwar
(The Book of Images). The name of Theosebeia is often rendered as Atusabiya,
Amtuthasiya, Uthasiya, etc. Zosimus can be placed at the end of an evolution in
alchemy. With Bolos, it became philosophical; with Zosimus it becomes a mystical
religion where the idea of salvation is predominant. In fact, the period which
separates Bolos the Democritean from Zosimus saw intense alchemic activity.
Vastly different elements - Egyptian magic, Greek philosophy, neo-Platonism,
Babylonian astrology, Christian theology, pagan mythology - can be found in
Zosimus' texts. He is full of gnostic and hermetic books, he knows the Jewish
speculations about the Old Testament. He gives to alchemy a religious character
which will remain forever, at least in its traditional course, since with the
Arab alchemists it will retain its concrete technical character before meeting
the Ismaeli gnostic speculations.
Zosimus and his contemporaries who
collected their predecessors' traditions insist on their connection with the
Egypt of the Pharaohs or with the Persia of Zoroastra and Ostanes. We can find
texts under the name of Agathodaimon compared with Hermes. Some written pieces
even say that alchemic texts were engraved in hieroglyphs on steles but it was
absolutely forbidden to divulge them.
This Greek-Egyptian alchemy survived in
Alexandria for several centuries. From here it will go to Constantinople, where
several recensions of the 'collection of Greek alchemists' were compiled, and to
the Arabs when they conquered Egypt in the seventh century.
Hermes and Hermetic literature
According to Ibn al-Nadlm (351, 19) Arab alchemists considered the Babylonian
Hermes as the first one to have mentioned the art of alchemy. Exiled by his
countrymen, he came to Egypt where he became king. He wrote a certain number of
books on alchemy and was equally interested in the study of the hidden forces of
nature.
The Fihrist gives a list of thirteen books of Hermes about
alchemy but in fact some of them are about magic. Other texts have been traced:
Alfalakiyya al-kubra (The Great Epistle of the Celestial Spheres) by
Hermes of Denderah; Risalat al-sirr; Kitab Hirmis ila Tat
f-l-santa; Risalat harb al-kawakEb al-barbawiyya; Tadblr Hirmis
al-Haramisa; sahlfat Hirmis al'ugma, commentated by Jaldaki;
Risalat Qabas al-qabis fi tadbir Hirmis al-Haramisa.
Sirr al-Khaliqa of Ballnas
The Kitab Sirr al-khaliqa wa santat al-tabia also has the title Kitab al-'ilal (The Book of Causes); it was sometimes called simply li-lashya'. In the introduction a certain Sajiyus is introduced, a priest from Nablus who commented on the story of Bal.
JABIR IBN HAIYAN (721-815)
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. Since
the work of Paul Kraus we are on more solid ground with Jabir ibn Haiyan.
He
is Abu Musa Jabir ibn Haiyan al-Azdl (al-Tusl, al-~artusl, al-Harram meaning
that he was a Sabian?; al-Sufi). Flourished mostly in kufa. The most famous
Arabic' alchemist; the alchemist Geberu of the Middle Ages. He may be the author
of a book on the astrolabe, but his fame rests on his alchemical writings
preserved in Arabic: the 'Book of the Kingdom', the 'Little Book of the
Balances', the 'Book of Mercury', the 'Book of Concentration', the 'Book of
Eastern Mercury', and others. According to the treatises already translated (by
Berthelot), his alchemical doctrines were very anthropomorphic and animistic.
But other treatises (not yet available in translation) show him in a better
light. We find in them remarkably sound views on methods of chemical research; a
theory on the geologic formation of metals; the so-called sulphur-mercury theory
of metals (the six metals differ essentially because of different proportions of
sulphur and mercury in them); preparation of various substances (e.g., basic
lead carbonate; arsenic and antimony from their sulphides). Jabir deals also
with various applications, e.g., refinement of metals, preparation of steel,
dyeing of cloth and leather, varnishes to water-proof cloth and protect iron,
use of manganese dioxide in glass making, use of iron pyrites for writing in
gold, distillation of vinegar to concentrate acetic acid. He observed the
imponderability of magnetic force.
It is possible that some of the facts
mentioned in the Latin works, ascribed to Geber and dating from the twelfth
century and later, must also be placed to Jabir's credit. It is impossible to
reach definite conclusions until all the Arabic writings ascribed to Jabir have
been properly edited and discussed. It is only then that we shall be able to
measure the full extent of his contributions, but even on the slender basis of
our present knowledge, Jabir appears already as a very great personality, one of
the greatest in mediaeval science. Jabir admits the Aristotelian theory about
the composition of matter-earth, water, air, fire-but he develops it along a
different path. First, there are four elementary qualities, or natures: heat,
cold, dryness, humidity. When they get together with a substance they form
compounds of the first degree, i.e. hot, cold, dry, wet. The union of two of
these qualities gives
hot + dry + substance -------------- fire
hot + wet + substance
-------------- air
cold + wet + substance ------------- water
cold + dry +
substance ------------- earth
One of his chief contributions to the
theory of chemistry lies in his views upon the constitution of metals. To
understand his conceptions properly, we must hark back to Aristotle, whose
philosophy of nature was universally accepted in its main principles by the
scientists of Islam. According to Aristotle, it still be remembered, all
substances are composed of the four elements, fire, air, water, and earth, which
are themselves interconvertible. The immediate constituents of minerals and
metals are two exhalations, one an 'earthy smoke' and the other a watery
vapour'; the former consists of small particles of earth on the way to becoming
fire, while the latter consists of small particles of water on the way to
becoming air. Neither exhalation is ever entirely free from some admixture of
the other. Stones and other minerals are formed when the two exhalations become
imprisoned in the earth, the dry or smoky exhalation predominating; metals are
formed under similar circumstances if the watery exhalation
predominates.
Jabir accepted this theory of the constitution of metals, but
appears to have regarded it as too indefinite to explain observed facts or to
afford a guide to practical methods of transmutation. He therefore modified it
in such a fashion as to make it less vague, and the theory he suggested
survived, with some alterations and additions, until the beginning of modern
chemistry in the eighteenth century. The two exhalations, he believed, when
imprisoned in the bowels of the earth, are not immediately changed into minerals
or metals, but undergo an intermediate conversion. The dry or smoky exhalation
is converted into sulphur and the watery one into mercury, and it is only by the
subsequent combination of sulphur and mercury that metals are formed. The reason
of the existence of different varieties of metals is that the sulphur and
mercury are not always pure, and that they do not always combine in the same
proportion. If they are perfectly pure and if, also, they combine in the most
complete natural equilibrium, then the product is the most perfect of metals,
namely gold. Defects in purity or proportion, or both, result in the formation
of silver, lead, tin, iron or copper, but since these metals are essentially
composed of the same constituents as gold, the accidents of combination may be
removed by suitable treatment. Such treatment is the object of alchemy.
The
idea that the transmutation of the metals was possible had the excellent merit
of provoking incessant experiment, but unfortunately the alchemists were always
prone to theorize to an inordinate extent. Moreover, at Alexandria, the mystical
beliefs of the Gnostics and the Neo-Platonists - however admirable and
attractive in themselves - had a very detrimental effect upon experimental
science. Alchemy thus became less and less a matter for experimental research
and more and more the subject of ineffable speculation and superstitious
practice, not to say fraudulent deception.
The practical applications of
chemistry were not neglected. Jabir describes processes for the preparation of
steel and the refinement of other metals, for dyeing cloth and leather, for
making varnishes to waterproof cloth and to protect iron, for the preparation of
hair-dyes and so on. He gives a recipe for making an illuminating ink for
manuscripts from 'golden' marcasite, to replace the much more expensive one made
from gold itself, and he mentions the use of manganese dioxide in glass-making.
He knew how to concentrate acetic acid by the distillation of vinegar, and was
also acquainted with citric acid and other organic substances.
Abu Bakr Muhammad ibn Zakariyya al-Razi (866-925)
After the death of Jabir, nearly a century elapsed before Islam produced a
worthy successor. History records a few alchemists in the interval, but it is
only with the Persian chemist and physician Abu Bakr Muhammad ibn Zakariyya
al-Razi (known to the West as Rhazes) that Jabir's great example is successfully
followed.
According to one of his biographers, Razi was born in A.D. 866 at
Ray, an ancient town on the southern slopes of the Elburz Range that skirts the
south of the Caspian Sea. In his early youth he devoted himself to the study of
music, literature, philosophy, manichaeism, magic and alchemy.
After his
first visit to Baghdad, when he was at least 30 years of age, that he seriously
took up the study of medicine under the well-known doctor Ali ibn Sahl (a Jewish
convert to Islam, belonging to the famous medical school of Tabaristan or
Hyrcania). Razi showed such skill in the subject that he quickly surpassed his
master, and wrote no fewer than a hundred medical books. He also composed 33
treatises on natural science (exclusive of alchemy), on mathematics and
astronomy, and more than 45 on philosophy, logic and theology. On alchemy, in
addition to his Compendium of Tweltne Treatises and Book of
Secrets, he wrote about a dozen other books, two of which were refutations
of works by other authors in which the possibility of alchemy had been
attacked.
As to the man himself, one of the inhabitants of Ray who
recollected Razi described him as a man with a large square head. He used to
take his seat in the lecture room, with his own pupils next him, and the pupils
of these men behind them, and, behind these again, other pupils. Whenever any
one came with a question, he used first to ask the back row. If they could
answer, he went away; but, if not, he used to pass on to the others, and they,
in their turn, if they could give a correct answer, tried to satisfy him;
otherwise Razi would speak on the subject himself. He was a liberal and generous
man, and so compassionate to the poor and sick that he used to distribute alms
to them freely and even nurse them himself. He was always reading or copying,
and "I never visited him" (said the narrator) "without finding him at work on
either a rough or a fair copy". His eyes were always watering 'on account of his
excessive consumption of beans', and he became blind towards the end of his
life. He died in his native town on 26 October, A.D, 925, at the age of 60 years
and 2 months.
Razi is of exceptional importance in the history of chemistry,
since in his books we find for the first time a systematic classification of
carefully observed and verified facts regarding chemical substances, reactions
and apparatus, described in language almost entirely free from mysticism and
ambiguity.
Razi's scheme of classification of the substances used in
chemistry shows such a sound, it is the first time that we find such a
systematic classification. The list of these products as mentioned in Sirr
al-asrar book is as follows:
A. The earthly substances (al-'aqaqtr al-turabiyya) Mineral substances
1. The SPIRITS (al-arwah)
Mercury, sat ammoniac, arsenic sulphate
(orpiment and realgar), sulphur
2. The BODIES (al-ajsad)
Gold, silver, copper, iron, lead, tin, Kharsind
3. The STONES (al-ahjar)
Pyrites (marqashita), iron oxide (daws), Zinc
oxide (tutiya), azurite, malachite, turquoise, haematite, arsenic oxide, lead
sulphate (kohl), mica and asbestos, gypsum, glass
4. The VITRIOLS (al-zajat)
Black, alums (al-shubub), white (qalqadzs),
green (qalqand), yellow (qulqutar), red
5. BORAX (al-bawariq)
6. The SALTS (al-amlah)
B. Vegetable substances
Rarely used, they are mainly employed by
physicians.
C. Animal substances
Hair, scalp, brain, bile, blood, milk, urine, eggs,
horn, shell
To these 'natural substances' we need to add a certain number of artificially
obtained substances; al-Razl mentions litharge, lead oxide, verdigris, copper
oxide, zinc oxide, cinnabar, caustic soda, a solution of polysulphur of calcium
and other alloys.
The insistence of al-Razl in promoting research work in the
laboratory brought its fruits in pharmacy.
Razi gives also a list of the
apparatus used in chemistry. This consists of two classes: (i) instruments used
for melting metals, and (ii) those used for the manipulation of substances
generally. In the first class were included the following:
Blacksmith's hearth Bellows Crucible Descensory Ladle Tongs Shears Hammer or Pestle File Semi-cylindrical iron mouldThe second class included:
Crucible Flasks Alembic Phials Receiving flask Cars Aludel Cauldron Beakers Sand-bath Glass cups Water-bath Shallow iron pan Large oven Sieve Hair-cloth Heating-lamps Filter of linen Cylindrical stove Potter's Kiln Chafing-dish Mortar Flat stone mortar Stone roller Round mold Glass funnelIt will be observed that the list was comprehensive, but Razi completes the subject by giving details of making composite pieces of apparatus, and in general provides the same kind of information as is to be found nowadays in manuals of laboratory arts.
The first stage: consisted in the cleansing and purification of the
substances employed, by means of distillation, calcination, amalgamation,
sublimation and other processes. Having freed the crude materials from their
impurities,
The next stage: was to reduce them to an easily fusible
condition. This was done by an operation known as aeration, that resulted in a
product which readily melted, without any evolution of fumes, when dropped upon
a heated metal plate.
The third stage: was to bring the 'berated'
products to a further state of disintegration by the process of solution. The
solutions of different substances, suitably chosen in proportion to the amount
of 'bodies', 'spirits', &c., they were supposed to possess, were brought
together by the process of combination.
Finally: the combined
solutions underwent the process of coagulation or solidification, the product
which it was hoped would result, being the Elixir. This, as previously
explained, was a substance of which a small quantity, when projected upon a
larger quantity of baser metal, would convert the latter into silver or
gold.
From a general study of his chemical works, Stapleton says that hence
forward Razi must be accepted as one of the most remarkable seekers after
knowledge that the world has ever seen - not only 'unique in his age and
unequaled in his time', but without a peer until modern science began to dawn in
Europe with Galileo and Robert Boyle. The evidence of his passion for objective
truth that is furnished by his chemical writings, as well as the genius shown by
the wide range of books he wrote on other subjects, force us to the conclusion
that - with the possible exception of his acknowledged master, Jabir - Razi was
the most noteworthy intellectual follower of the Greek philosophers of the
seventh to fourth centuries B.C. that mankind produced for 1900 years after the
death of Aristotle. His supreme merit lay in his rejection of magical and
astrological practices, and adherence to nothing that could not be proved, by
experiment and test, to be actual fact.
Later Arab Alchemists
No account of chemistry in Islam would be even approximately complete which
omitted to mention four of Arab Alchemists: Abu'l-Qasim of Iraq, Aidamir
al-Jildaki, Al-Tughra‘i and Al-Majriti.
The first of these men lived in the
thirteenth century, probably at Cairo, and has left us several books which,
apart from their intrinsic interest, serve to indicate the trend of alchemical
thought and practice in Islam after the process of transmission to Europe had
been in action for some considerable time. It is very obvious that in
Abu'l-Qasim's time the reaction of European scientific thought upon Islam had
not yet begun, and the contrast between the two intellectual worlds could not be
better exemplified than in the persons of Abu'l-Qasim and his contemporary Roger
Bacon. The driving force of Islam was beginning to grow weak, while the new
stimulus that Arabic learning had given to Europe had resulted in a scientific
renaissance which was to reach its full development not long afterwards.
Abu'l-Qasim's outlook is that of his predecessors of three or four centuries
earlier, and although there was unquestionably some advance in empirical
practical chemistry, the theoretical views expressed are supported by quotations
not merely from Jabir but from the still earlier alchemists of the Alexandrian
school. Abu'l-Qasim himself seems to have been a good experimentalist and a
comparatively logical thinker, but his general views often represent a
retrograde movement upon those of Jabir.
Aidamir al-Jildaki (?-1342)
Who also lived for part of his life at Cairo, is of importance chiefly on account of his extensive and deep knowledge of Muslim chemical literature. He apparently spent the major portion of his existence in collecting and explaining all the books upon alchemy that he could discover, and labours are now beginning to receive their reward; for writings form an indispensable source of a great deal of our knowledge of chemistry and chemists in Islam. In a few instances it is possible to observe that he must have carried out experimental work himself, but for the most part his books are commentaries upon the works of earlier writers. Thus his great End of the Search is a commentary upon Abu'l-Qasim's book Knowledge acquired concerning the Cultivation of Gold, and although his explanations are not seldom more obscure than the passages they are designed to illuminate, he had the admirable habit of making innumerable and lengthy quotations from Khalid, Jabir, Razi and many other authors, and his books are thus a rich storehouse of information upon Muslim chemistry. It is therefore necessary to inquire into the question whether his quotations and historical facts are authentic, and whether his reliability is to be accepted or doubted. Fortunately, it often happens that a book from which he quotes is extant, and his quotations in such cases can of course be checked. A test conducted on these lines has shown that Jildaki was conscientious and although he does not always come through unscathed, his general trustworthiness can be safely assumed. He thus deserves the warmest thanks of all who are interested in the history of chemistry.
Al-Tughra’i (1063-1120)
This alchemist, who was a civil servant under the Seljuks Malik-shah and
Muhammad, has great importance as a poet and a writer. His Lamiyyat
al'ajam is very famous. He was executed in 1121.
In his Nihaya,
Jaldakl tries to appraise the scientific value of al-Tughra'l: he was the most
important alchemist since Jabir; his style has become perfect but his books can
only be read by those who are already advanced in the great art. In his Kitab
al-Masabt,h wa-l-maf tech (The Lamps and the Keys), he reports the teaching
of the Ancients; he is more theoretical than practical. He declares in his poem
that he has inherited his alchemy knowledge from Hermes. According to Jaldakl,
his most important book on alchemy is MafAti,h al-rahma wa masabl,h
al-,hikma.
Al-Majriti ( -1007)
In Andalusia, under the Caliphat of al-Hakam II (961-76) flourished scholars
in all the domains, including alchemy. One of these was Maslama b. Ahmad, from
Cordoba, better known under the name al-Majriti because he lived for a long time
in Madrid. He assimilated Muslim sciences in the Arab Orient where he seems to
have had close contacts with the originators of the famous Epistles of Ikhwan
al-Safa'. He brought to Spain a new edition of this encyclopaedia. He is
known in particular for his astronomical work: a revision of the Persian
astronomical tables in Arabic chronology, a commentary on the Planispherium
of Ptolemy and a treatise on the astrolabe. The last two were translated
quite early into Latin and were very successful .
An important alchemy work,
Rutbat' al-Hakzm wa mudkhal al-tathm (Rank of the Wise Man and Isagoge
oh! Teaching), is attributed to him, and an astrological work called Chayat
al-Haklm. The last was translated into Spanish in 1256 by order of Alfonso
the Wise, King of Castile and Leon (from 1252 to 1284), and later it became
popular in Latin under the name of Picatrix. Rabelais in
Pantagruel mentions it when he speaks of the "Reverend Father of Devil
Picatrix, rector of the diabolic faculty in Toledo". The attribution of the book
to al-Majriti was considered false as the internal critique shows that this work
could only have been written after 1009, while al-Majriti died in
1007.
Holmyard redeveloped an interest in Rutbat al-Haklm. The author first
expresses his views on the way an aspiring alchemist should be educated: by
study mathematics, books from Euclid and Ptolemy, natural sciences with
Aristotle or Apollonius of Tyana; then he needs to acquire a manual ability and
practice precise observation, reasoning about chemical substances and their
reactions; in his research he needs to follow the laws of nature, like a
physician: a physician diagnoses the disease and administers the medicine, but
it is Nature who acts.
1. G. Sarton, "Introduction to the history of science," Williams and Wilkins,
Baltimore, 1927
2. E.J. Holmyard, "Makers of Chemistry," Oxford, at The
Clarendon Press, 1939
3. E.Farber ,"Great Chemists ", Interscience
Publishers,1961
4. E.Von-Meyer, History of Chemistry, 1906 5. J. M.
Stillman, Story of Alchemy And Early Chemistry
6. J. R. Partington,
A Short History of Chemistry, 1939.