At the feet of the Virgin is a gem for which there is as yet no Latin or Greek name. The French have named it after the toad [crapaudine], because it represents so perfectly the figure of a toad that no art could do this so well. The miracle is all the greater that the stone is so small, and that the exterior surface has not the form of a toad, the image showing through it as though inclosed within.[330] As we see, the stone of Erasmus contained the form or image of a toad. This was not usually the case with the concretions that bore this name, and it appears probable that the “crapaudine” of the shrine at Walsingham owed its peculiarity rather to art than to nature. A rather far-fetched explanation of the origin of these substances is given by Ambrosianus, who relates that, in order to investigate the quality and character of toad-stones, he killed a number of toads and took out their brains. Although these were not hard when extracted, they became, in time, as hard as stones.[331] A toad-stone which appeared to represent the form of this animal was preserved as an heirloom in the Lemnian family. It exceeded the size of a walnut and was often seen to dissipate the swelling caused by the bite of a venomous creature in any part of the body, if it were rubbed quickly over the swelling. It, therefore, seemed to possess the same quality as was attributed to the animal from which it was taken, namely, to draw out and annul all poisons. If any neighbor of the Lemnian family were bitten by a mouse, a spider, a dormouse, a wasp, a beetle, or any such creature, he soon sought the aid of this stone.[332] We have noted De Boot’s unsuccessful attempt to secure a toad-stone, but he does not seem to have used the orthodox method for obtaining it. According to one authority,[333] the creature should be placed in a cage covered with a red cloth and then set in the hot sunshine for several days, until thirst forced the poor toad to eject his precious stone, which was to be removed as soon as possible lest it should be swallowed again. Another method proposed is so cruel that it is a comfort to know that the whole matter is little more than a fanciful conceit. In this case, the toad was to be enclosed in a pot with many perforations, and the vessel with its unlucky inmate was then to be placed in an ant-hill and left there until nothing remained of the toad except his bones and the coveted stone. It is quite probable that any stone found in an ant-hill after this procedure would be termed a “toad-stone,” since the toad was put away in order to find one. In some instances they may have been bony concretions from the head of the toad, or even pebbles that the toad had swallowed.