CHAP. 6.—WHY A FEW OF THE PLANTS ONLY HAVE BEEN USED MEDICINALLY. PLANTS, THE MEDICINAL PROPERTIES OF WHICH HAVE BEEN MIRACULOUSLY DISCOVERED. THE CYNORRHODOS: TWO REMEDIES. THE PLANT CALLED DRACUNCULUS: ONE REMEDY. THE BRITANNICA: FIVE REMEDIES.
Such was the state of medical knowledge in ancient times, wholly concealed as it was in the language of the Greeks. But the main reason why the medicinal properties of most plants remain still unknown, is the fact that they have been tested solely by rustics and illiterate people, such being the only class of persons that live in the midst of them: in addition to which, so vast is the multitude of medical men always at hand, that the public are careless of making any enquiries about them. Indeed, many of those plants, the medicinal properties of which have been discovered, are still destitute of names—such, for instance, as the one which we mentioned[531] when speaking of the cultivation of grain, and which we know for certain will have the effect of keeping birds away from the crops, if buried at the four corners of the field.
But the most disgraceful cause of all, why so few simples are known, is the fact that those even who are acquainted with them are unwilling to impart their knowledge; as though, forsooth, they should lose for ever anything that they might think fit to communicate to others! Added to all this, there is no well-ascertained method to guide us to the acquisition of this kind of knowledge; for, as to the discoveries that have been made already, they have been due, some of them, to mere accident, and others again, to say the truth, to the interposition of the Deity.
Down to our own times, the bite of the mad dog, the symptoms of which are a dread of water and an aversion to every kind of beverage, was incurable;[532] and it was only recently that the mother of a soldier who was serving in the prætorian guard, received a warning in a dream, to send her son the root of the wild rose, known as the cynorrhodos,[533] a plant the beauty of which had attracted her attention in a shrubbery the day before, and to request him to drink the extract of it. The army was then serving in Lacetania, the part of Spain which lies nearest to Italy; and it so happened that the soldier, having been bitten by a dog, was just beginning to manifest a horror of water when his mother’s letter reached him, in which she entreated him to obey the words of this divine warning. He accordingly complied with her request, and, against all hope or expectation, his life was saved; a result[534] which has been experienced by all who have since availed themselves of the same resource. Before this, the cynorrhodos had been only recommended by writers for one medicinal purpose; the spongy excrescences, they say, which grow[535] in the midst of its thorns, reduced to ashes and mixed with honey, will make the hair grow again when it has been lost by alopecy. I know too, for a fact, that in the same province there was lately discovered in the land belonging to a person with whom I was staying, a stalked plant, the name given to which was dracunculus.[536] This plant, about an inch in thickness, and spotted with various colours, like a viper’s skin, was generally reported to be an effectual preservative against the sting of all kinds of serpents. I should remark, however, that it is a different plant from the one of the same name of which mention has been made in the preceding Book,[537] having altogether another shape and appearance. There is also another marvellous property belonging to it: in spring, when the serpents begin to cast their slough, it shoots up from the ground to the height of about a couple of feet, and again, when they retire for the winter it conceals itself within the earth, nor is there a serpent to be seen so long as it remains out of sight. Even if this plant did nothing else but warn us of impending danger, and tell us when to be on our guard, it could not be looked upon otherwise than as a beneficent provision made by Nature in our behalves.
(3.) It is not, however, the animals only that are endowed with certain baneful and noxious properties, but, sometimes, waters[538] even, and localities as well. Upon one occasion, in his German campaign, Germanicus Cæsar had pitched his camp beyond the river Rhenus; the only fresh water to be obtained being that of a single spring in the vicinity of the sea-shore. It was found, however, that within two years the habitual use of this water was productive of loss of the teeth and a total relaxation of the joints of the knees: the names given to these maladies, by medical men, were “stomacace”[539] and “sceloturbe.” A remedy for them was discovered, however, in the plant known as the “britannica,”[540] which is good, not only for diseases of the sinews and mouth, but for quinzy[541] also, and injuries inflicted by serpents. This plant has dark oblong leaves and a swarthy root: the name given to the flower of it is “vibones,”[542] and if it is gathered and eaten before thunder has been heard, it will ensure safety in every respect. The Frisii, a nation then on terms of friendship with us, and within whose territories the Roman army was encamped, pointed out this plant to our soldiers: the name[543] given to it, however, rather surprises me, though possibly it may have been so called because the shores of Britannia are in the vicinity, and only separated by the ocean. At all events, it was not called by this name from the fact of its growing there in any great abundance, that is quite certain, for at the time I am speaking of, Britannia was still independent.[544]
CHAP. 7.—WHAT DISEASES ARE ATTENDED WITH THE GREATEST PAIN. NAMES OF PERSONS WHO HAVE DISCOVERED FAMOUS PLANTS.
In former times there was a sort of ambition, as it were, of adopting plants, by bestowing upon them one’s name, a thing that has been done before now by kings even, as we shall have occasion to show:[545] so desirable a thing did it appear to have made the discovery of some plant, and thus far to have contributed to the benefit of mankind. At the present day, however, it is far from impossible that there may be some who will look upon these researches of ours as frivolous even, so distasteful to a life of ease and luxury are the very things which so greatly conduce to our welfare.
Still, however, it will be only right to mention in the first place those plants the discoverers of which are known, their various properties being classified[546] according to the several maladies for the treatment of which they are respectively employed: in taking a review of which one cannot do otherwise than bewail the unhappy lot of mankind, subject as it is, in addition to chances and changes, and those new afflictions which every hour is bringing with it, to thousands of diseases which menace the existence of each mortal being. It would seem almost an act of folly to attempt to determine which of these diseases is attended with the most excruciating pain, seeing that every one is of opinion that the malady with which for the moment he himself is afflicted, is the most excruciating and insupportable. The general experience, however, of the present age has come to the conclusion, that the most agonizing torments are those attendant upon strangury, resulting from calculi in the bladder; next to them, those arising from maladies of the stomach; and in the third place, those caused by pains and affections of the head; for it is more generally in these cases, we find, and not in others, that patients are tempted to commit suicide.
For my own part, I am surprised that the Greek authors have gone so far as to give a description of noxious plants even; in using which term, I wish it to be understood that I do not mean the poisonous plants merely; for such is our tenure of life that death is often a port of refuge to even the best of men. We meet too, with one case of a somewhat similar nature, where M. Varro speaks of Servius Clodius,[547] a member of the Equestrian order, being so dreadfully tormented with gout, that he had his legs rubbed all over with poisons, the result of which was, that from that time forward all sensation, equally with all pain, was deadened in those parts of his body. But what excuse, I say, can there be for making the world acquainted with plants, the only result of the use of which is to derange the intellect, to produce abortion, and to cause numerous other effects equally pernicious? So far as I am concerned, I shall describe neither abortives nor philtres, bearing in mind, as I do, that Lucullus, that most celebrated general, died of the effects of a philtre.[548] Nor shall I speak of other ill-omened devices of magic, unless it be to give warning against them, or to expose them, for I most emphatically condemn all faith and belief in them. It will suffice for me, and I shall have abundantly done my duty, if I point out those plants which were made for the benefit of mankind, and the properties of which have been discovered in the lapse of time.