Science in the 19th Century Periodical

Observer (1791–1900+) Waterloo Directory

Ocean Highways (1873–74) Geographical Magazine (1874–78) Waterloo Directory

Official Year-Book of the Scientific and Learned Societies of Great Britain and Ireland (1884–1900+) Waterloo Directory

Old Poor Robin (1776–1826) Waterloo Directory

Old Woman's Magazine (cited 1857) PU1/32/17/1

Once a Week (1859–80) Waterloo Directory

Oriental Herald (1824–29) Waterloo Directory

Osservatore Medico (1823–33) RLIN

Oswestry Advertiser (1849–88) Waterloo Directory

Our Day (1888–94) Our Day, the Altruistic Review (1895–1900+) RLIN

Outing (1882–1900+) Waterloo Directory

Oxford Essays (1855–58) Waterloo Directory