A clinical and pathologic study has been made of sixty-three cases of benign tumors of the pharynx and tonsil observed in the Mayo Clinic from 1917 to 1930, inclusive. Benign tumors of the pharynx and tonsil may be papillomas, adenomas, lipomas, fibromas, myxomas, varices, angiomas, chondromas, osteomas, polyps, teratomas, cysts and lymphoid tissue tumors. Certain observers, including Thomson,1 group mixed tumors with benign growths. We believed adenocarcinoma of the mixed tumor type to be of a low grade of malignancy, and did not include such tumors in this series of benign tumors. The series includes practically all of the other types of benign neoplasms. Thirty-five (55.5 per cent) of the sixty-three cases were papillomas, whereas the remainder formed small groups, usually of from one to five cases, of other types (tabulation). They rarely produce dangerous symptoms. THE TUMOR Situation.—A subdivision of these tumors into four groups, according to