Celsus and other ancients have described a mode of operating for the stone, although it must be owned that a method, deserving the preference in many respects, and known by the name of magnus apparatus or the grand operation, was the invention of Johannes de Romanis, of Cremona, who lived at Rome in the year 1520, and published his work at Venice in 1535. The instrument that we make use of in trepanning was doubtless first used by the ancients, and only rendered more perfect by Woodall and Fabricius. Tapping, likewise, is in all respects an invention of theirs. Laryngotomy, or the opening of the larynx in the quinsey, was practised by them with success; an operation which, though safe and needful, is out of use at present. Galen, in particular, supported by reason, experience, and the authority of Asclepiades, justly applauds it as the ultimate resource in the case of a quinsey. Hernia intestalis, with the distinguishing differences of the several species of that malady, and their method of cure, are exactly described by the ancients. They also cured the pterygion and cataract, and treated the maladies of the eye as judiciously as modern oculists. The opening of an artery and of the jugular vein is no more a modern invention, than the application of the ligature in the case of an aneurism, which was not well understood by Frederic Ruysch, the celebrated anatomist of Holland. The extirpation of the amygdales, or of the uvula, is not at all a late invention, though it must be owned the efficacious cauteries now used in the case of the former, were neither practised nor known by the ancients. The method we now use of treating the fistula lacrymalis, a cure so nice and difficult, is precisely that of the ancients, with the addition that Fabricius made of the cannula for applying the cautery. As to the real caustic, which makes a considerable article in surgery, although Costeus, Fienus, and Severinus have written amply on that subject, yet it is evident from a single aphorism of Hippocrates, that this great physician knew the use of it as well as those who have come after him: and besides, it is frequently spoken of in the writings of all the other ancients, who without doubt used it with great success in many cases where we have left it off, or know not how to apply it. The cure of the varices by incision appears, from the works of Celsus and Paulus Eginetus, to have been a familiar practice among the ancients. The ancients describe the mode of curing the polypus of the ear, a malady little understood by the moderns. They were likewise well acquainted with all kind of fractures and luxations, and the means of remedying them; as well as with all the sorts of sutures in use among us, besides many we have lost. The various amputations of limbs, breasts, &c. were performed among them as frequently and with as great success as we can pretend to. As to the art of bandaging, the ancients knew it so well, and to such a degree of perfection, that we have not added any thing considerable to what Galen taught in his excellent tract on that subject. As to remedies externally applied, we are indebted to them for having instructed us in the nature and properties of those we now use; and in general methods of cure, particularly of wounds of the head, the moderns, who have written most judiciously upon it, thought they could do no better service to posterity, than comment upon that admirable book which Hippocrates wrote on this subject.
Ancient Chemistry.
It is agreed almost by all, that chemistry was first cultivated in Egypt, the country of Cham, of whom it is supposed primarily to have taken its name, Χημεῑα, Chemia, sive Chamia, the science of Cham. Tubal-Cain, and those who with him found out the way of working in brass and iron, must have been able chemists; for it was impossible to work upon these metals, without first knowing the art of digging them out of the mine, of excavating them, and of refining and separating them from the ore.
Potable Gold.
From the story of the golden fleece, the golden apples that grew in the gardens of the Hesperides, and the reports of Manethon and Josephus with relation to Seth’s pillars, deductions have been made in favour of the translation of metals; but to come to real and established facts, it appears that Moses broke the golden calf, reduced it into powder, to be mingled with water, and gave it to the Israelites to drink: in one word, he rendered gold potable.
It was objected within a century, that this operation was impracticable, and by some it was affirmed as having been impossible. But the famous Joel Langelotte affirms in his works, that gold may be entirely dissolved by attrition alone; and the ingenious Homberg assures us, that by pounding for a long while certain metals, and even gold itself, in plain water, those bodies have been so entirely dissolved as to become potable. Frederic III., king of Denmark, being curious to ascertain the fact, engaged some able chemists of his time to attempt it. After many trials they at last succeeded, but it was in following the method of Moses; by first of all reducing the gold into small parts by means of fire, and then pounding it in a mortar with water, till it was so far dissolved as to become potable. This fact is unquestionable; and probably Moses, who was instructed in all the learning of the Egyptians, became acquainted with the method from that ancient and erudite people, from whom the most eminent philosophers of Greece derived their knowledge.
Mummies.
The art of embalming bodies, and of preserving them for many ages, never could have been carried so far as it was by the Egyptians, without the greatest skill in chemistry. Yet all the essays to restore it have proved ineffectual; reiterated analyses of mummies have failed to discover the ingredients of which they were composed. There were also, in those mummies of Egypt, many things besides, which fall within the verge of chemistry: such as their gilding,[507] so very fresh, as if it were but of fifty years’ standing; and their stained silk, vivid in its colours at the end of three thousand years. In the British Museum there is a mummy covered all over with fillets of granulated glass, various in colour, which shows that at that time they understood not only the making of glass, but could paint it to their liking. These glass ornaments are tinged with the same colours, and set off in the same taste, as the dyes in which almost all other mummies are painted.
Painting on Cloth.
Their manner of painting upon linen was, by first drawing upon it the outlines of the design, and then filling each compartment of it with different sorts of gums, proper to absorb the various colours; so that none of them could be distinguished from the whiteness of the cloth. They then dipped it for a moment in a caldron full of boiling liquor prepared for the purpose; and drew it thence, painted in all the colours they intended. These colours neither decayed by time, nor moved in the washing; the caustic impregnating the liquor wherein it was dipped, having penetrated and fixed every colour intimately through the whole contexture of the cloth.