426 Ulisse Aldrovandi
IX. Two-headed Chick
X. Double-beaked Chick
Furthermore, in the avian family, perhaps more than in any other class of animals, there is no shortage of monstrous examples relevant to our current study. Indeed, Albertus Magnus, as recorded by Schenck, observed a two-headed goose. Aelian, as cited by Porta, reports that during the reign of Oeneus in the South, a two-headed crane appeared, and that under another king, a four-headed bird was seen. Lycosthenes recounts a similar birth of a goose in the year of our Lord 1496; it occurred in a certain village belonging to the territory of Strasbourg called Schweinheim, located two miles from Stras-

