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قراءة كتاب On the Antiquity of the Chemical Art

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On the Antiquity of the Chemical Art

On the Antiquity of the Chemical Art

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دار النشر: Project Gutenberg
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A few typographical errors have been corrected. They have been marked in the text with mouse-hover popups. Misspellings in Greek names were treated as errors; others are noted but not changed.

PRESIDENT’S OPENING ADDRESS TO CHEMICAL SECTION.

ON THE ANTIQUITY

OF

THE CHEMICAL ART.

By JAMES MACTEAR, F.C.S., F.C.I.




THE PRESIDENT’S OPENING ADDRESS TO THE CHEMICAL SECTION.

On the Antiquity of the Chemical Art. By James Mactear, F.C.S., F.C.I.,
Member of the International Jury, Paris, 1878,
and Medalist of the Society of Arts.

[Read before the Section, December 8th, 1879.]

The study of the History of Chemistry as an art, or as a science, is one which possesses peculiar fascination for its votaries. It has been the subject of deep research and much discussion, much has been written upon the subject, and many theories have been broached to account for its origin. We have had laid before us by Professor Ferguson, in his papers on this subject of Chemical History, very clearly and fully the generally-accepted position as regards the origin of the science, and in the last of these papers, entitled “Eleven Centuries of Chemistry,” he deals with the subject in a most complete manner, tracing back through its various mutations the development of the science to the time of Geber, in or about the year A.D. 778.

Of Geber, as a chemist, Professor Ferguson writes, “He was the first—because, although he himself speaks of the ancients, meaning thereby his forerunners, nothing is known of these older chemists.”

Rodwell, in his “Birth of Chemistry,” after a careful examination of the question, comes to the conclusion that, “in spite of all that has been written on the subject, there is no good evidence to prove that alchemy and chemistry did not originate in Arabia not long prior to the eighth century, A.D.,” bringing us again to the times of Geber.

He is not alone in this opinion, and it seems to be generally accepted that chemistry originated in the Arabian schools about this period.

In dealing with the question of the antiquity of chemical art, it has been too much the habit to look at the question with a view of discovering when and who it was that first brought forth, fully clothed as a science, the art of chemistry.

Let us look at the definition of the science given by Boerhæve, about 1732. He describes chemistry as “an art which teaches the manner of performing certain physical operations, whereby bodies cognizable to the senses, or capable of being rendered cognizable, and of being contained in vessels, are so changed by means of proper instruments as to produce certain determinate effects, and at the same time discover the causes thereof, for the service of the various arts.”

Now, it is amply evident that, long before the various known facts could be collected and welded into one compact whole as a science, there must have existed great store of intellectual wealth, as well as mere hereditary practical knowledge of the various chemical facts.

I do not think it will be disputed that, until comparatively recent times, technical knowledge has constantly been in advance of theory, and that it is not too much to conclude that, no matter where we first find actual records of our science, its natal day must have long before dawned. Even in our day, when theoretical science, as applied to chemistry, has made such immense strides, how often do we find that it is only now that theory comes in to explain facts, known as such long previous, and those engaged in practical chemical work know how much technical knowledge is still unwritten, and what may even be called traditionary.

I purpose taking up the subject from this point of view, and attempting, with what little ability I can, to follow back to a still more remote period than that of Geber and the Arabian school of philosophers the traces of what has often been called the divine art.

An aspect of the question that has often presented itself to me is this, that the history of what we call our world extends over some 4000 years before Christ and 1878 years since, so that, according to the usually accepted idea, if chemistry originated in Arabia in the eighth century, it was not known during say the first 5000 years of the world’s history, but has advanced to its present high position amongst the sciences in the last 1000 years.

I hope to be able to show that, while the Arabian school of philosophy get the credit of originating most of the sciences, that it is as undeserved in the case of chemical science as in that of astronomy or mathematics. At the same time let us not undervalue the services rendered to science by this school: it is to them we owe the distribution of the knowledge of most of our sciences, and the Arabic literature of most of these was widely spread abroad over all the known world of their time.

The central portion of Baghdad between the eastern and western portions of the Old World, and the wise and enlightened policy of its rulers, which welcomed to its schools, without reference to country or creed, the wise and learned men of every nation, drew to it as to a centre the accumulated wisdom and knowledge of both the rising and the setting sun. Long ere this time, however, we find, as regards the Greeks, that they constantly travelled eastward in search of learning, while we know that the expedition of Alexander the Great, about B.C. 327, in which he traversed a considerable portion of India, had already opened up the store-houses of Indian lore to the minds of the West.

In connection with this, the following extract from an old book: called The Gunner, dated 1664, is interesting:—

“In the life of Apollonius Tyanæus, written by Philostratus 1500 years ago, we find, in reference to the Indians called Oxydra: These truly wise men dwelled between the rivers Hyphasis and Ganges; their country Alexander the Great never entered, being deterred, not by fear of the inhabitants, but, as I suppose, by, religious considerations, for had he passed the Hyphasis, he might doubtless have made himself master of the country all round him; but their cities he could never have taken, though he had led a thousand as brave as Achilles or ten thousand such as Ajax to the assault. For they come not out into the field to fight those who attack them; but these holy men, beloved of the gods, overthrow their enemies with tempests and thunder-bolts shot from their walls.

“It is said that Egyptian Hercules and Bacchus (Dionysius), when they overran India, invaded this people also, and having prepared warlike engines, attempted to conquer them. They made no show of resistance, but upon the enemy’s near approach to their cities they were repulsed with storms of lightning and thunder hurled upon them from above.”

May we not here have the original of the Greek fire, that was in its day so celebrated and so destructive?

Beginning then at the period of Geber, about 776 A.D., let us try to work backwards and trace, if we can, the progress of chemical knowledge down the stream of time.

While the Western Roman Empire had fallen, the Eastern still held its sway as far as the rivers Tigris and Euphrates, and continued

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