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Fabulous Stones, Concretions and Fossils: Postlethwayte

That the "eagle-stones" were not always hollow is shown by a specimen owned in the eighteenth century by the English family Postlethwayte. This was solid, and had been cut into the shape of a heart, a hole being pierced at the upper end so that the stone could be worn suspended. In a curious letter written April 25, 1742, by Martha Postlethwayte, sister of Sir Thomas Gooch, who successively presided over the episcopal sees of Bristol, Norwich and Ely, to her daughter Barbara Kerrick, the writer advises her correspondent, in order to avoid a repetition of former misadventures, to "wear the eagle-stone and take Mrs. Stone's receit," and adds: "I hope it may have good effect and make me a good grandmother." The result was favorable, and must naturally have affirmed the faith in the powers of the stone.

An inventory of the furniture, plate, jewels, etc., of Charles V of France, made in 1379, describes two stones preserved in a case of cypress-wood which the king always carried about with him. One of these was called the "holy stone" and aided women in childbirth. This was probably an "eagle-stone." It was set in gold and the setting was adorned with four pearls, six emeralds and two balas-rubies. The other stone, which cured the gout, was an engraved gem bearing the figure of a king and an inscription in Hebrew characters. This description suggests one of the Gnostic gems so common in the early Christian centuries. The gem was suspended from a silver cord, so that it could be worn on the neck, or perhaps attached to some other part of the body. We find in the comptes royaux of 1420 an electuary composed of powdered precious stones, for the cure of the infirmities of Isabel of Bavaria, who was fifty years old and had been for several years obese and a valetudinarian. In some parts of the Orient the superstitious notion exists that the aetites occasionally emits a wailing sound during the night, and this is said to be either an expression of the birth-pangs of the mother stone, or else the cry of its new born offspring, the small stones enclosed within the geode, for the story goes that each night some of these are generated. These "eagle-stones" still retain their repute in Italy, where they are called pietre gravide, or "pregnant stones," and are considered by many of the peasants as almost indispensable aids to parturition. They are in such demand that the lucky owners rent them for the nine months during which they are worn. As soon as one case has been happily concluded, the amulet is passed on to some other woman who is in need of it. A fee of five lire, or one dollar, is paid in each case, and a pledge worth a hundred lire ($20) is required before the stone is handed over. Some amulets of this class bear Christian symbols.

Geodes of this description consisting of limonite are to be found in many places. Some of them are of relatively recent formation, and one of these shows curiously enough that in addition to its other virtues the aetites can on occasion perform the functions of a savings-bank. This strange specimen was found in 1846, at Perigueux, department Dordogne, France. On opening the geode there appeared within some 200 silver coins dated in the fifteenth and sixteenth centuries; all of these were encrusted with the material forming the enclosing mass.

Long, white, rough stones, calcareous shell growths, were sometimes taken from snails and cockles. These were believed to have a marked diuretic action, and were therefore strongly recommended for certain diseases of the kidneys and the bladder. They were also believed to be helpful in cases of difficult parturition. Although no details are given, it seems most probable that the stones were reduced to a powder from which some sort of potion was concocted, this having no more action than so much ground shell or marble dust. The alectorius or "cock-stone" is one of the most famous of those real or supposed animal concretions that were known in ancient times. From the age of Pliny--and unquestionably long before his time--there was a popular belief that this stone was only to be found in the gizzard of a cock which had been caponed when three years old, and had lived seven years longer. This was believed to allow the substance to acquire its boasted virtue, for the longer it remained in the body of the capon, the greater its power. Such a "cock-stone" never exceeded the size of a bean. From its association with the pugnacious fowl, the alectorius became a favorite stone with wrestlers, and the great and invincible Milo of Croton is said to have owned many of his victories to the possession of one, for if held in the mouth, it quenched the thirst and thus refreshed the combatant.

Many other virtues of this stone are recorded; it rendered wives agreeable to their husbands, dissolved enchantments, brought new honors and powers in addition to those already enjoyed, and helped kings to acquire new dominions. How persistent was the faith in the virtue of the alectorius is shown by the fact that the great astronomer Tycho Brahe greatly valued a stone of this kind, not larger than a bean, and believed that it brought him luck in gambling and in love. Thomas de Cantimpre says that the name signifies an allurer or enticer, because the stone excites the love of husbands for their wives. In order to secure the due effect it should be held in the mouth, possibly because this would render the wife less eloquent. A specimen of the alectorius is listed in the inventories of Jean Duc de Berry (1401-1416). It is called there a "capon-stone" and is described as having red and white spots. Several other objects to which talismanic virtues were ascribed are also noted, such, for instance, as the "molar of a giant," set in leather; probably the tooth of a hippopotamus, or the fossil tooth of some antediluvian creature. There is also what is termed a "tester," composed of several "serpent's teeth" (glossopetrae?), horns of the "unicorn" (narwhal's teeth) and stones regarded as antidotes to poison. These were all suspended by golden chains, and were valued at seventy-five livres tournois. As a companion piece to the "cock-stone," the hen furnished a concretion possessing special virtues. This came from the fowl's gizzard and was of a sky-blue color; its Arabic name was hajar al-hattaf. If it were worn by an epileptic, the attacks of his malady would cease; it favored procreation and also nullified the effects of the Evil Eye, and it kept children from having bad dreams if placed beneath their heads when they were sleeping. Thus the effects it was fancied to produce differed from those ascribed to the alectorius.

In medieval times bunches of dried "serpent's tongues" were sometimes hung around salt-cellars or attached to spits; but frequently, for royal or princely use, such tongues, or the jawbones of snakes, were set with valuable precious stones and constituted a peculiar jewel termed in old French a languier, or epreuve (tester); for these utensils, often very rich and tasteful specimens of the goldsmith's art, were believed to show in some way the presence of the much-dreaded poison in any viands with which they were brought in contact.

The Indians and Spaniards in South America made remedial use of a stone said to be obtained from the cayman or alligator, at Nombre de Dios, Cartagena, etc. This was employed as a cure for various intermittent fevers. Monardes writes that he applied two of these lapides caymanum to the temples of a young girl suffering from an attack of fever, and found that the fever was alleviated thereby; but he doubts that fevers could be entirely cured by this treatment.