The loose, enclosed concretion was named in Latin _callimus_, and we have a detailed description from the sixteenth century of one of these, which belonged to Georgius Fabricius. Because of its curious markings he had it set on a pivot in a ring, so that both sides of the stone could be easily seen. The material was in part as clear as a rock-crystal, evidently a very translucent chalcedony, but the chief interest centred in the images or figures traced by nature upon the stone. These showed what seemed to be two forms, one of a cowled monk, and the other that of a tall, beardless man; there was also a third, showing an undefined form. On the under side of this _callimus_ was marked the outline of a crescent moon.[359] A seventeenth century writer, not otherwise uncritical, does not hesitate to declare that he had himself witnessed, in the case of a fig-tree, an instance of the special power exercised by the _ætites_. One of these stones having been attached to this tree, all the fruit dropped off in, the space of ten hours, although tree had apparently lost nothing of its vigor, its foliage remaining as luxuriant as before.[360] An old treatise on the _ætites_ gives the following names as applied to it in various languages:[361] Italian: Aquilina, pietra d’aquila, pietra aquilina, ethite. French: Pierre de l’aigle. Spanish: Piedra de l’aguila. Polish: Orlovi Kamyen. Swedish: Oernarsteen. English: Eagle-stone. German: Adlerstein. Flemish: Adelersteen, arensteen. Arabic: Hager achtamach. Syriac: Abno dneshre. Chaldaic: Abno dineshar, or abno denishra. Hebrew: ’Eben ha-nosher. Some said that this stone might be found not only in the eagle’s nest, but also in that of the stork. This idea was, however, entirely erroneous in Bausch’s opinion, for though he had caused diligent search to be made by all those who encountered such nests, no “eagle-stone” could ever be found. To the supposed “stork-stones” had been given the name _lychnites_, as they were believed to be luminous, their light serving to frighten off any snakes which might be seeking the new-laid eggs.[362]