Definition of O's:
Before our departure there was a grand display of fireworks: O's appeared in every dimension and design, and a blaze of fire and Bengal lights in rapid succession kept us in a continual state of admiration.- "In the Courts of Memory 1858-1875.", L. de Hegermann-Lindencrone.
- "The Strength of Gideon and Other Stories Strength of Gideon; Mammy Peggy's Pride; Viney's Free Papers; The Fruitful Sleeping of The Rev. Elisha Edwards; The Ingrate; The Case of 'Ca'line'; The Finish of Patsy Barnes; One Man's Fortunes; Jim's Probation; U", Paul Laurence Dunbar.
- "The Firelight Fairy Book", Henry Beston.