The only nitre-works in Egypt were formerly those in the vicinity of Naucratis and Memphis; those near Memphis being inferior to the others, the piles of nitrum there prepared being as hard as stone, and many of the heaps having become changed into rocks. When in this state, vessels are made of it, and very frequently they melt it with sulphur on a charcoal fire. When substances are wanted to keep, they employ this last kind of nitrum. In Egypt there are also nitre-beds, the produce of which is red, owing to the colour of the earth in the same locality. Froth of nitrum, a substance held in very high esteem, could only be made, according to the ancients, when dews had fallen; the pits being at the moment saturated with nitrum, but not having arrived at the point of yielding it. On the other hand, again, when the pits were in fall activity, no froth would form, it was said, even though dews should fall. Others, again, have attributed the formation of this last substance to the fermentation of the heaps of nitrum. In a succeeding age, the medical men, speaking of it under the name of “aphronitrum,” have stated that it was collected in Asia, where it was to be found oozing from the soft sides of certain mines — the name given to which was “colyces” — and that it was then dried in the sun. The very best is thought to be that which comes from Lydia; the test of its genuineness being its extreme lightness, its friability, and its colour, which should be almost a full purple. This last is imported in tablets, while that of Egypt comes enclosed in vessels pitched within, to prevent its melting, the vessels being previously prepared by being thoroughly dried in the sun.
To be good, nitrum should be very fine, and extremely spongy and porous. In Egypt, it is sophisticated with lime, an adulteration easily detected by tasting it; for when pure, it liquefies immediately, while that which has been adulterated, remains undissolved sufficiently long to leave a pungent taste in the mouth. It is burnt in a close earthen vessel, as otherwise it would decrepitate: except in this last case, however, the action of fire does not cause it to decrepitate. This substance neither produces nor nourishes anything; while, in the salt-pans, on the other hand, we see plants growing, and the sea, we know, produces immense numbers of animated beings, though, as to plants, sea-weed only. It is evident, too, that the acridity of nitrum must be much greater than that of salt, not only from the fact last mentioned, but from the circumstance also, that at the nitre-beds the shoes wear out with the greatest rapidity; localities which are otherwise very healthy, and remarkably beneficial for the eye-sight. At the nitre-works ophthalmia is a thing unknown: persons, too, that come there with ulcers upon them experience a rapid cure; though ulcerations formed upon the spot are but slow in healing. Used as a friction with oil, nitrum is a sudorific, and acts emolliently upon the body. That of Chalastra is used as a substitute for salt, in making bread, and the Egyp- tian nitrum is eaten with radishes, it having the effect of making them more tender; though as to other edibles it turns them white and spoils them. To vegetables it imparts an additional greenness.
Viewed medicinally, nitrum is calorific, attenuant, mordent, astringent, desiccative, and ulcerating: it is good, too, in all cases where certain humours require to be drawn out or dispersed, or where gentle mordents or attenuants are required, as in the case of pustules and pimples, for example. Some persons ignite it for this purpose, and, after quenching it in astringent wine, bruise and use it, without oil, at the bath. Applied with dried iris powdered, and green olive oil, it checks immoderate perspiration. Applied topically with a fig, or boiled down to one half in raisin wine, it removes marks upon the eyes and granulations of the eyelids. It is used, also, for the removal of argema, boiled in a pomegranate rind with raisin wine. Used as an ointment, in combination with honey, it improves the eye-sight. It is very useful, also, for tooth-ache, taken as a collutory with wine and pepper, or boiled with a leek. Burnt, and employed as a dentifrice, it restores teeth to their original colour that have turned black; and an application of it, with Samian earth and oil, kills nits and other vermin of the head. Dissolved in wine, it is used as an in- jection for suppurations of the ears, and, applied with vinegar, it consumes filth that has accumulated there. Introduced dry into the ears, it disperses singings and tinglings in those organs. Applied topically, in the sun, with an equal quantity of Cimolian chalk dissolved in vinegar, it removes white morphew; and a mixture of it with resin, or with white raisins — the stones being beaten up as well — is an excellent cure for boils. It is useful, also, for inflammations of the testes; and, in combination with axle-grease, for pituitous eruptions on all parts of the body. For the cure of bites inflicted by dogs, it is used with resin, the application being made at first with vinegar. With lime and vinegar, it is used as a liniment for stings inflicted by serpents, as, also, for ulcerations, whether phagedenic, putrid, or serpiginous; in cases, too, of dropsy, it is employed both internally and externally, beaten up with figs. Taken internally as a decoction, in doses of one drachma, with rue, dill, or cummin, it effectually removes griping pains in the bowels. An external application of it, with oil and vinegar, is highly refreshing to persons exhausted with fatigue; and it is equally beneficial for shudderings and cold shiverings, the feet and hands of the patient being well rubbed with it, mixed with oil. It allays the itching sensations attendant upon jaundice, more particularly when it is administered to the patient while perspiring, with vinegar. Taken internally in oxycrate, it is an antidote to the poison of fungi; and, taken with water, it acts beneficially, as an emetic, in cases where the buprestis has been swallowed.
To persons who have taken bull’s blood, nitrum is admi- nistered, in combination with laser. Mixed with honey and cow’s milk, it is curative of ulcers upon the face. For the cure of burns, it is applied pounded, being first parched till it turns black. For pains in the bowels and kidneys, and for rigidities of the limbs and pains in the sinews, it is used in the form of an injection. For the cure of paralysis of the tongue, it is applied to that organ with bread, and to asthmatic patients it is administered in a ptisan. Flower of nitrum, used in combination with equal proportions of galbanum and turpentine respectively, is curative of chronic coughs; the mixture being taken in pieces the size of a bean. Nitrum itself, boiled and melted with tar, is given to patients to swallow, for quinzy.
Flower of nitrum, mixed with oil of cyprus, and applied in the sun, is a soothing liniment for pains in the joints. Taken internally with wine, it is curative of jaundice. It acts as a carminative also; and it arrests bleeding at the nose, the vapour of it in boiling water being inhaled by the patient. Mixed with alum, it removes porrigo; and, used daily with water, as a fomentation,. it removes offensive odours of the armpits. Used in combination with wax, it heals ulcers produced by pituitous secretions, and, similarly employed, it is very useful for affections of the sinews. For the cure of the cœliac flux, it is used in the form of an injection. Many authorities recommend the use of it, with oil, as a friction when cold shiverings are just coming on; as also, for the removal of leprous spots and freckles. It is a good plan also, to use a sitting-bath made with an infusion of nitrum, for the cure of gout, atrophy, opisthotony, and tetanus.
Both salt and nitre, boiled with sulphur, become petrified.
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CHAP. 47. (11.)
SPONGES, AND THE REMEDIES DERIVED FROM THEM: NINETY-TWO OBSERVATIONS THEREON.
We have already, when speaking of the marine productions, described the various kinds of sponge. Some authorities make the following distinctions: they regard as males those sponges which are pierced with more diminutive holes, are more compact in form and more ready to imbibe, and are stained, to satisfy luxurious tastes, in various colours, sometimes purple even: those, on the other hand, which have holes, larger and running into one another, they consider to be females. Among the male sponges, too, there is one kind, harder than the others, the name given to which is “tragi,” and the holes of which are extremely small and numerous. Sponges are made white artificially; the softest being chosen for the purpose, and after they have be
en steeped the whole summer through with the foam of the sea. They are then exposed to the action of the moon and hoar-frosts, being turned upside down, or, in other words, with that part upwards by which they formerly adhered to the rocks, the object being that they may become white throughout.
That sponges are animated beings, we have already stated; and not only this, but they have a coat of blood even, adhering to them. Some say that they regulate their movements by the sense of hearing, and that at the slightest noise they contract themselves, and emit an abundant moisture: when such is the case, it is said, it is impossible to tear them away from the rocks, and consequently they must be cut, an operation during which they emit a sanious secretion. Those sponges, too, are preferred to all others, which are grown on spots with a north-east aspect, the physicians assuring us that these retain the breath of life the longest of all; a circumstance which renders them additionally useful to the human body, from the union which is thereby effected of their vital principle with our own. It is for this reason, too, that they are preferred as fresh as possible, and in a moist state rather than dry. They are not so useful, however, if applied with hot water, and still less so if they are oiled, or applied to the body when just anointed. The compact sponges, it is thought, have less adhesive power than the others.
The softest kind of sponge are those employed for tents. Applied with honied wine, sponges reduce swellings of the eyes, and are extremely useful for the removal of rheum from those organs, the very finest and softest being of necessity selected for the purpose. Sponges are applied, also, with oxycrate, to defluxions of the eyes, and, with warm vinegar, for head-ache. In addition to these properties, fresh sponges are resolvent, emollient, and soothing; but when old, they lose their healing properties for wounds. They are employed, also, in medicine, for cleansing sores, and for either fomenting or cover — ing the parts fomented, till some other application is made. Applied topically, they have a healing effect upon running ulcers, and upon sores on the bodies of aged persons. Fractures, too, and wounds are most effectually fomented with sponge; and when surgical operations are performed, it instantly absorbs the blood, so as to allow the incision to be seen. Sponges are applied, also, as a bandage, to inflamed wounds, sometimes dry, and, in some cases, moistened with vinegar, wine, or cold water. Soaked in rain-water, and applied to the incision, they prevent cuts recently inflicted from swelling. They are used as an application for such parts of the body, though apparently uninjured, as are threatened with occult humours which require to be dispersed; as also for reducing the tumours known to us as “apostemes,” the parts being first fomented with a decoction of honey. Sponges are employed, also, for affections of the joints, steeped in vinegar and salt, or in oxycrate: in cases, however, where the attack is attended with fever, water alone is used with the sponge. Soaked in salt and water, sponges are applied to callosities; and, with vinegar, they are used for stings inflicted by scorpions.
In the treatment of wounds, sponges are sometimes used as a substitute for greasy wool, either with wine and oil, or with salt and water; the only difference being, that wool acts emolliently upon sores, whereas sponge has an astringent action, and absorbs the vitiated humours. To dropsical patients, bandages of sponge are applied, either dry or steeped in warm water or oxycrate, according as there is a necessity for soothing the skin, or for covering it up and drying it. Sponges are applied, also, in all those diseases where warmth is required, being first soaked in boiling water and then squeezed out between a couple of boards. Employed in this manner, too, they are very useful for affections of the stomach and for the excessive heats attendant upon fever. Steeped in oxycrate, they are good for diseases of the spleen, and in vinegar for erysipelas; nothing, in fact, being equally efficacious. Sponge, when thus used, should ways be so applied as amply to cover the adjacent parts that are not affected.
Employed with vinegar or cold water, sponge arrests hæmorrhage; soaked in warm salt and water, and frequently renewed, it removes the lividity which results from a recent blow. Used with oxycrate, it disperses pains and swellings in the testes. To bites inflicted by dogs, it is a good plan to apply sponge, from time to time, cut fine, and moistened with vinegar, cold water, or honey. Ashes of African sponge, with juice of cut-leek and a mixture of salt and cold water, are good, taken internally, for patients suffering from discharges of blood: applied topically to the forehead, with oil or vinegar, they are curative of tertian fevers. The sponge of Africa, more particularly, soaked in oxycrate, disperses tu- mours. Ashes of any kind of sponge burnt with pitch, arrest the discharge of blood from wounds; though some recommend, for this purpose, the sponge with large pores only, burnt with pitch. For affections of the eyes, sponge is burnt in vessels of unbaked earthenware; the ashes being found highly efficacious for granulations of the eyelids, fleshy excrescences, and all diseases of those parts which require detergents, astringents, or expletives. For all these purposes, however, it is the best plan first to rinse the ashes. When the body is in a diseased state, sponge acts as a substitute for body-scrapers and linen towels, and it protects the head most efficiently against the action of the sun.
Medical men, in their ignorance, comprehend all sponges under two names; African sponge, the substance of which is tougher and firmer; and Rhodian sponge, which is softer and better adapted for fomentations. At the present day, however, the softest sponges of all are those found about the walls of the city of Antiphellos. Trogus informs us that the softest tent sponges are found out at sea, off the coast of Lycia, upon spots from which the sponge has been previously removed: we learn, too, from Polybius, that these fine sponges, suspended over a patient’s bed, will ensure him additional repose at right.
We will now turn to the remedies derived from the marine and aquatic animals.
SUMMARY. — Remedies, narratives, and observations, nine hundred and twenty-four.
ROMAN AUTHORS QUOTED. — M. Varro, Cassius of Parma, Cicero, Mucianus, Cælius, Celsus, Trogus, Ovid, Polybius, Sornatius.
FOREIGN AUTHORS QUOTED. — Callimachus, Ctesias, Eudicus, Theophrastus, Eudoxus, Theopompus, Polycritus, Juba, Lycus, Apion, Epigenes, Pelops, Apelles, De- mocritus, Thrasyllus, Nicander, Menander the Comic writer, Attalus, Sallustius Dionysius, Andreas, Niceratus, Hippocrates, Anaxilaüs.
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BOOK XXXII. REMEDIES DERIVED FROM AQUATIC ANIMALS.
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CHAP. 1. (1.)
THE POWER OF NATURE AS MANIFESTED IN ANTIPATHIES. THE ECHENEÏS: TWO REMEDIES.
FOLLOWING the proper order of things, we have now arrived at the culminating point of the wonders manifested to us by the operations of Nature. And even at the very outset, we find spontaneously presented to us an incomparable illustration of her mysterious powers: so much so, in fact, that beyond it we feel ourselves bound to forbear extending our enquiries, there being nothing to be found either equal or analogous to an element in which Nature quite triumphs over herself, and that, too, in such numberless ways. For what is there more unruly than the sea, with its winds, its tornadoes, and its tempests? And yet in what department of her works has Nature been more seconded by the ingenuity of man, than in this, by his inventions of sails and of oars? In addition to this, we are struck with the ineffable might displayed by the Ocean’s tides, as they constantly ebb and flow, and so regulate the currents of the sea as though they were the waters of one vast river.
And yet all these forces, though acting in unison, and impelling in the same direction, a single fish, and that of a very diminutive size — the fish known as the “echeneïs” — possesses the power of counteracting. Winds may blow and storms may rage, and yet the echeneïs controls their fury, restrains their mighty force, and bids ships stand still in their career; a result which no cables, no anchors, from their ponderousness quite incapable of being weighed, could ever have produced! A fish bridles the impetuous violence of the deep, and subdues the frantic rage of the universe — and all this by no effort of i
ts own, no act of resistance on its part, no act at all, in fact, but that of adhering to the bark! Trifling as this object would appear, it suffices to counteract all these forces combined, and to forbid the ship to pass onward in its way! Fleets, armed for war, pile up towers and bulwarks on their decks, in order that, upon the deep even, men may fight from behind ramparts as it were. But alas for human vanity! — when their prows, beaked as they are with brass and with iron, and armed for the onset, can thus be arrested and rivetted to the spot by a little fish, no more than some half foot in length!
At the battle of Actium, it is said, a fish of this kind stopped the prætorian ship of Antonius in its course, at the moment that he was hastening from ship to ship to encourage and exhort his men, and so compelled him to leave it and go on board another. Hence it was, that the fleet of Cæsar gained the advantage in the onset, and charged with a redoubled impetuosity. In our own time, too, one of these fish arrested the ship of the Emperor Caius in its course, when he was returning from Astura to Antium: and thus, as the result proved, did an insignificant fish give presage of great events; for no sooner had the emperor returned to Rome than he was pierced by the weapons of his own soldiers. Nor did this sudden stoppage of the ship long remain a mystery, the cause being perceived upon finding that, out of the whole fleet, the emperor’s five-banked galley was the only one that was making no way. The moment this was discovered, some of the sailors plunged into the sea, and, on making search about the ship’s sides, they found an echeneïs adhering to the rudder. Upon its being shown to the emperor, he strongly expressed his indignation that such an obstacle as this should have impeded his progress, and have rendered powerless the hearty endeavours of some four hundred men. One thing, too, it is well known, more particularly surprised him, how it was possible that the fish, while adhering to the ship, should arrest its progress, and yet should have no such power when brought on board.
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