Poison Romance and Poison Mysteries

by C. J. S. Thompson

Nicander, of Colophon, a Greek physician, who lived 204-138 B.C., in his work on "Poisons and their Antidotes," the earliest on the subject known, describes the effects of snake venom and the properties of opium, henbane, colchicum, cantharides, hemlock, aconite, toxicum (probably the venom of the toad), buprestis, the salamander, the sea-hare, the leech, yew (decomposed), bull's blood, milk, and certain fungi, which he terms "evil fermentations of the earth"; and as antidotes for the same he mentions lukewarm oil, warm water, and mallow or linseed tea to excite vomiting. The same writer also made a rough classification of the poisons known in his time, twenty-two in all, and divided them into two classes—viz., "those which killed quickly," and "those which killed slowly."

Of the minerals, arsenic, antimony, mercury, gold, silver, copper, and lead were used by the Greeks; the antidote recommended in case of poisoning being hot oil, and other methods to induce vomiting and prevent the poison being absorbed into the system.

Bull's blood is classed as a poison by various ancient writers, and it is recorded that Æson, Midas King of Phrygia, Plutarch, and Themistocles, killed themselves by drinking bull's blood. It is probable that some strong poisonous vegetable substance, such as cicuta, was mixed with the blood.

Dioscorides throws a further light on the poisons of antiquity in his great work on Materia Medica, which for fifteen centuries or more remained the chief authority on that subject. He mentions cantharides, copper, mercury, lead, and arsenic. Among the animal poisons are included toads, salamanders, poisonous snakes, a peculiar kind of honey, and the blood of the ox, probably after it had turned putrid. The sea-hare is frequently alluded to by the ancient Greeks, and was evidently regarded by them as capable of producing a very powerful poison. Domitian is said to have administered it to Titus. It is supposed to have been one of the genus Aplysia, among the gasteropods, and is described by the old writers as a dreadful object, which was neither to be touched nor looked upon with safety.

Among the poisonous plants enumerated by Dioscorides are the poppy, black and white hellebore, henbane, mandragora, hemlock, elaterin, and the juices of species of euphorbia, and apocyneæ. Medea is said to have been the first to introduce colchicum. The black and white hellebore were known to the Romans, and used by them as an insecticide, and Pliny states that the Gauls used a preparation of veratrum to poison their arrows. Arsenic was employed by the Greeks as a caustic, and for removing hair from the face; while copper, mercury, and lead were used in their medical treatment. The study of poisons was forbidden for a long period, and Galen mentions the fact that only a few philosophers dared treat the subjects in their works.

In the East, poisons have been used from remote times, not only for the destruction of human life, but also for destroying animals—arsenic, aconite, and opium being employed by the Asiatics for these purposes. The Hindoos have many strange traditions concerning poisons, some being attributed with the property of causing a lingering death, which can be controlled by the will of the poisoner. But this is doubtless more legendary than correct. One curious and mysterious substance mentioned by Blyth, and known in India as Mucor phycomyces, is stated to be a species of fungi. When the spores are administered in warm water they are said to attach themselves to the throat and rapidly develop and grow, with the result that in a few weeks, all the symptoms of consumption develop, and the victim is rapidly carried off by that fatal disease.

The early Hebrews were also acquainted with certain poisons, the words, "rosch" and "chema" being used by them as generic terms. Arsenic was known to them as "sam," aconite as "boschka," and ergot probably as "son."

The ancients attributed poisonous properties to certain bodies simply on account of their origin being mysterious and obscure, and many of these errors and traditions have been handed down for centuries. As an instance of this, the belief that diamond dust possessed deadly poisonous properties seems to have existed until recent times. Many mysterious deaths in the Middle Ages were attributed to it. There is little doubt that death might be caused by the mere mechanical effect of an insoluble powder of this kind, if it were possible to introduce it into the stomach in sufficient quantity, but powdered glass or sand would have the same effect as diamond dust, viz. in causing violent irritation of the stomach. Yet some of these old traditions have a substratum of fact.

The poisonous properties of the toad have long been regarded as fabulous, but recent investigation has proved that the skin of a species of toad secretes a poison, similar in action to digitalis.

The venom of the toad has had the reputation of possessing poisonous properties from a very early period, and was probably one of the earliest forms of animal poison known.