Olaus Magnus and the sea-serpent, [143]

Onocentaur, [85]

Ophyasta, herb, [199]

Oppian, pigmy combats, [125]

Order of the dragon, [22];
of the dragon overthrown, [27]

Oribasius on the basil, [201]

Origin of fairies, [101]

“Orlando Furioso,” of Ariosto, [50], [70]

Orpheus and the Sirens, [89]

“Ortus sanitatis,” [219]