Opéra Comique, Paris, [565]

Ophir Mine, [474]

Orange, town of, [177], [352]

Orange County, [177], [594]

Orange Grove Association, [445], [448]

Oranges and orange groves, [211], [212], [286], [352], [382], [391], [412], [448], [532], [576], [578]; orange trees brought from Nicaragua, [459]; first navel oranges, [451], [625]; device for picking oranges, [265]

Orchards, [28], [112], [162], [573], [578]

Ord, E. O. C., [33], [34], [112], [336]; — Survey, [334]

O'Reilly, James, [475]

O'Reilly, John Boyle, [605]