1911 Encyclopædia Britannica, Volume 6… (1911)
“ COCKATRICE, a fabulous monster, the existence of which was firmly believed in throughout ancient and medieval times,—descriptions and figures of it appearing in the natural history works of such writers as Pliny and Aldrovandus, those of the latter published so late as the beginning of the 17th century. Produced from a cock’s egg hatched by a serpent, it was believed to possess the most deadly powers, plants withering at its touch, and men and animals dying poisoned by its look. ”
