Othmer Library holds runs of many hard-to-find magazines, journals and other periodicals relevant to Brooklyn and Long Island research. Among these are The Brooklynite (1926-30), Brooklyn Life (1890-1931), Flatbush magazine (1923-28, 1941-60), and journals of Long Island history (1939-42, 1961-69, 1973-82) published by the Brooklyn Historical Society (then known as the Long Island Historical Society).