poisons and their symptoms, and others followed his example. The Khalif Al Raschid, who maintained political relations with Charlemagne by means of Jewish envoys, set that monarch an example by which indeed he was not slow to profit, in actively patronising the medical They found medical college at Djondesabour, and founding a univercolleges, sity at Bagdad. He prohibited any person from practising medicine until after a satisfactory examination before one of those faculties. In the East the theological theory of disease and of its cure was fast passing away. Of the school at Bagdad, Joshua ben Nun is said to have been the most celebrated professor, the school itself actively promoting the translation of Greek works into Arabicnot alone works of a professional, but also those of a general kind. In this manner the writings of Plato and Aristotle

and promote science and literature.

were secured; indeed, it is said that almost every day camels laden with volumes were entering the gates of Bagdad. To add to the supply the Emperor Michael III. was compelled by treaty to furnish Greek books. The result of this intellectual movement could be no other than a diffusion of light. Schools arose in Bassora, Ispahan, Samarcand, Fez, Morocco, Sicily, Cordova, Seville, Granada.

Through the Nestorians and the Jews the Arabs thus became acquainted with the medical science of Greece and Alexandria; but to this was added other knowledge of a more sinister kind, derived from Persia, or Intermingling of magic and perhaps remotely from Chaldee sources, the Sorcery. Nestorians having important Church establishments in Mesopotamia, and the Jews having been long familiar with that country; indeed, from thence their ancestors originally came. More than once its ideas had modified their national religion. This extraneous knowledge was of an astrological or magical nature, carried into practice by incantations, amulets, charms, and talisDedication of mans. Its fundamental principle was that the planetary bodies exercise an influence over terrestrial things. As seven planets and seven supernatural. metals were at that time known-the sun, the moon, Mars, Mercury, Jupiter, Venus, Saturn, being the planets of astrology-a due allotment was made. Gold

portions of matter and

time to the

was held sacred to the sun, silver to the moon, iron to Mars, etc. Even the portions of time were in like manner dedicated; the seven days of the week were respectively given to the seven planets of astrology. The names imposed on those days, and the order in which they occur, are obviously connected with the Ptolemaic hypothesis of astronomy, each of the planets having an hour assigned to it in its order of occurrence, and the planet ruling first the hour of each day giving its Origin of the name to that day. Thus a ranged, the week week. is a remarkable instance of the longevity of an institution adapted to the wants of man. It has survived through many changes of empire, has forced itself on the ecclesiastical system of Europe, which, unable to change its idolatrous aspect, has encouraged the vulgar error that it owes its authenticity to the Holy Scriptures, an error too plainly betrayed by the pagan names that the days bear, and also by their order of occurrence.

These notions of dedicating portions of matter or of time to the supernatural were derived from the doctrine of a universal spirit or soul of the world, extensively believed in throughout the East. It underlies, as we have seen in Chapter III., all Oriental theology, and is at once a very antique and not unphilosophical conception. Of this soul the spirit of man was by many supposed to be a particle like a spark given off from a flame. All other things, animate or inanimate, brutes, plants, stones, nay, even natural forms, rivers, mountains, cascades, grottoes, have each an indwelling and animating spirit.

Amulets and charms, therefore, did not derive their powers from the material substance of which they consisted, but from this indwelling spirit. In the case of man, his immaterial principle was believed to correspond to his personal bodily form. Of the two great sects into which the Jewish nation had been divided, the Pharisees accepted the Assyrian doctrine; but the Sadducees, who denied the existence of any such spirit, boasted that theirs was the old Mosaic faith, and denounced their antagonists as having been contaminated at the time of the Babylonian captivity, before which catastrophe, according to them, these doctrines were unheard of in Jerusalem. In Alexandria, among the

leading men there were many adherents to these opinions. Alexandrian Thus Plotinus wrote a book on the association necromancy. of dæmons with men, and his disciple Porphyry proved practically the possibility of such an alliance; for, repairing to the temple of Isis along with Plotinus and a certain Egyptian priest, the latter, to prove his supernatural power, offered to raise up the spirit of Plotinus himself in a visible form. A magical circle was drawn on the ground, surrounded with the customary astrological signs, the invocation commenced, the spirit appeared, and Plotinus stood face to face with his own soul. In this successful experiment it is needless to inquire how much the necromancer depended upon optical contrivances, and how much upon an alarmed imagination. But if thus the spirit of a living man could be called up, how much more likely the souls of the dead.

These ideas originate in

every

In reality, these wild doctrines were connected with l'antheism, which was secretly believed in where; for, though, in a coarse mode of expresPantheism. sion, a distinction seemed thus to be made between matter and spirit, or body and soul, it was held by the initiated that matter itself is a mere shadow of the spirit, and the body a delusive semblance of the soul.

In the eighth century, many natural facts of a surprising and unaccountable description, well calculated to make a profound impression upon those who witnessed The black art. them, had accumulated. They were such as are now familiar to chemists. Vessels tightly closed were burst open when tormented in the fire, apparently by some invisible agency; intangible vapours condensed into solids; from colourless liquids gaudy precipitates were suddenly called into existence; flames were disengaged without any adequate cause; explosions took place spontaneously. So much that was unexpected and unaccountable justified the title of "the occult science," "the black art " From being isolated marvels unconnected with one another, these facts had been united. The Chaldee notions of a soul of the world, and of indwelling spirits, had furnished a thread on which all these pearls, for such they proved to be, might be strung.

With avidity-for there is ever a charm in the super

natural did the Arabs receive from their Nestorian and Jewish medical instructors these mystical inter- The Arabians pretations along with true knowledge. And far fall into these from resting satisfied with what their masters delusions, had thus delivered, they proceeded forthwith to improve and extend it for themselves. They submitted all kinds of substances to all kinds of operations, greatly improving the experimental process they had been taught. By exposing various bodies to the fire, they found it possible to extract from them more refined portions, which seemed to concentrate in themselves the qualities pertaining in a more diffuse way to the substances from which they had been drawn. These, since they were often invisible at their first disengagement, yet capable of bursting open the strongest vessels, and sometimes of disappearing in explosions and flames, they concluded must be the indwelling spirit or soul of the body, from which the fire had driven them forth. It was the Chaldee doctrine realized. Thus they obtained the spirit of wine, the spirit of salt, the spirit of nitre. We still retain in commerce these designations, though their significance is lost. When first introduced they had a strictly literal meaning. Alchemy, with its essences, quintessences, and spirits, was Pantheism materialized. God was seen to be in everything, in the abstract as well as the concrete, in numbers as well as realities.

tians also.

Anticipating what will have hereafter to be considered in detail, I may here remark that it was not the Mohammedan alone who delivered himself up to these mystic delusions; Christendom was prepared for them and the Chris also. In its opinion, the earth, the air, the sea, were full of invisible forms. With more faith than even by paganism itself was the supernatural power of the images of the gods accepted, only it was imputed to the influence of devils. The lunatic was troubled by a like possession. If a spring discharged its waters with a periodical gushing of carbonic acid gas, it was agitated by an angel; if an unfortunate descended into a pit and was suffocated by the mephitic air, it was by some dæmon who was secreted; if the miner's torch produced an explosion, it was owing to the wrath of some malignant spirit guarding a treasure,

and whose solitude had been disturbed. There was no end to the stories, duly authenticated by the best human testimony, of the occasional appearance of such spirits under visible forms; there was no grotto or cool thicket in which angels and genii had not been seen, no cavern without its dæmons. Though the names were not yet given, it was well understood that the air had its sylphs, the earth its gnomes, the fire its salamanders, the water its undines; to the day belonged its apparitions, to the night its fairies. The foul air of stagnant places assumed the visible form of dæmons of abominable aspect; the explosive gases of mines took on the shape of pale-faced, malicious dwarfs, with leathery ears hanging down to their shoulders, and garments of grey cloth. Philosophical conceptions can never be disentangled from social ideas; the thoughts of man will always gather a tincture from the intellectual medium in which he lives.

In Christendom, however, the chief application of these doctrines was to the relics of martyrs and saints. As with the amulets and talismans of Mesopotamia, these were regarded as possessing supernatural powers. They were a sure safeguard against evil spirits, and an unfailing relief in sickness.

Transmuta

A singular force was given to these mystic ideas by the peculiar direction they happened to take. As there are veins of water in the earth, and apertures through which the air can gain access, an analogy was inferred between its structure and that of an animal, leading to an inference of a similarity of functions. From this came the theory of the development of metals in its womb under tion of metals the influence of the planets, the pregnant earth - Alchemy. spontaneously producing gold and silver from baser things after a definite number of lunations. Already, however, in the doctrine of the transmutation of metals, it was perceived that to Nature the lapse of time is nothing-to man it is everything. To Nature, when she is transmuting a worthless into a better metal, what signify a thousand years? To man, half a century embraces the period of his intellectual activity. The aim of the cultivator of the sacred art should be to shorten the natural term; and, since we observe the influence of heat in hastening the ripening of