These secret poisons were conveyed in the most stealthy manner. Hence it is related, that the poison prepared by Antipater, to destroy Alexander, had been conveyed in a mule’s hoof, being of so corroding a nature, that no metallic vessel could contain it. This absurd story was credited by Plutarch and Quintus Curtius, whereas it appears more probable that poison was carried in an onyx, of which trinkets to contain precious ointments were frequently made, or under a human nail, also called Unguis, or ονυξ. The latter case was the opinion of Dr. Heberden.

Sir Henry Halford, in his learned and interesting essay on the deaths of illustrious persons of antiquity, has clearly proved that Alexander was not poisoned, but died of a lingering fever of a remittent type; a disease that was most probably endemic in the marshes surrounding the city of Babylon.

Many absurd ideas regarding venenose substances prevailed in ancient days as well as in modern times. Hannibal and Themistocles were said to have been poisoned with bullocks’ blood.

Eastern nations fancy that a fascinating power is the gift of virtue. In the Hitapadesa of Vishnusannan we find the following aphorism: “As a charmer draweth a serpent from his hole, so a good wife, taking her husband from a place of torture, enjoyeth happiness with him.” Possibly some receipt of this description may be found in the archives of Doctors’ Commons.


PLICA POLONICA AND HUMAN HAIR.

Hair may be considered a vegetation from the surface of the body. In a state of health, hairs are insensible, and it is more than probable that they possess no nerves, and that the circulation is carried on in the same manner as in plants. In the bulb or root of the hair, however, the vessels that promote this circulation are numerous, and there we may trace the diseases that affect this beauteous ornament of mankind, more especially in the Caucasian race. Long hair, of course, requires more nutriment than scanty locks, and some physicians have been of opinion that their great length debilitates. Dr. Parr affirms that he has observed symptoms of plethoric congestion to arise after long hair had been suddenly cut off.

Vauquelin has made curious experiments on this substance. A solution of black hair has deposited a black matter containing bitumen, sulphur, and iron; and alcohol extracted from the same coloured hair a whitish and a grayish-green oil. Red hair yielded whitish matter and a blood-red oil. White hair contained phosphate of magnesia, affording a proof of the disposition towards the formation of calcareous matter in old age. When hair becomes suddenly white under the shock of a severe moral impression, Vauquelin is of opinion that this phenomenon is to be attributed to the sudden extrication of some acid, as the oxymuriatic acid is found to whiten black hair. Parr thinks that this accident may be owing to an absorption of the oil of the hair by its sulphur, as in the operation of whitening woollen cloths.

The plica is a curious and disgusting malady, that has been considered a disease of the hair, which, according to vulgar report, secreted and shed blood. This affection is common and endemic in Poland; hence the term Polonica that has been given to it. The invasion of this pestilence has been traced to the irruption of the Moguls, from 1241 to 1287, chiefly under the command of Cayuk, grandson of Yenghiz. The most absurd tales were then related of the manner in which this dreaded infection was propagated. Spondanus affirms that it arose from the waters having been poisoned by venomous plants. Pistorius and Pauli relate that these waters were corrupted by the great number of human hearts that the Moguls cast in rivers and in wells. This supposition arose from the unheard-of acts of barbarity perpetrated by the ferocious invaders on the wretched population of Prussia, Poland, Hungary, and Transylvania. Their refined cruelty has been depicted by Gebhardi, in his history of Hungary, in the most glowing language.

Other historians assert that the plica originated in the East; such is the opinion of Stabel, Spreugel, and other writers. Rodrigo de Fonseca relates that the Indians, after drinking certain waters, were attacked with a disease in which the hair became agglomerated and matted in the most disgusting manner. Erndtel attributes the malady in Poland to the gluttonous consumption of horseflesh. However this may be, Poland has been ever considered the country most exposed to this visitation.