“…Before the advent of the roentgen ray, it was considered extremely rare, but in recent years some authors have expressed the opinion that it was fairly common. The great majority of reports have been of single cases, there being only twenty reports with 2 (Home, 1799;Lambì, 1857;Arnold, 1873;Hutchinson, 1888;Kikusi, 1888;Mitvalsky, 1894;Hamilton, 1901;Manasse, 1910;Boardman and Donovan, 1918;Harper, 1927;Fröding, 1929;Sackin, 1929;Birch-Hirschfeld, 1930;Brown, 1930;Armitage, 1931;Carmody, 1932;Roger, 1932;Neumann, 1934;Matolcsy, 1936, anddi Marzio, 1936), six with 3 cases (MacKenzie, 1854; Mackenty, 1924;Claus, 1927;Harris, 1928;Fetissof, 1929, andCausse, 1934), one with 4 cases (Carmody, 1935), one with 6 (Coppez, 1895), one with 9 cases (Childrey, 1939) and one with 30 cases (Sattler, 1938 (1934), 134 cases; Carmody (1935), 103 cases; Gatewood and Settel (1935), 147 cases, and Malan (1938), 178 cases. Faulkner (1924) stated that in twenty years at the last-named institution he had seen but 3 cases of osteoma of the frontal sinus.…”