According to Römer,1 the term epulis was first employed by Galen to designate a tumor on the gums. The term as used by him applied generally to any kind of abnormal gingival growth. In more recent times its use has been restricted, as a rule, to certain types of growth found in this region of the oral cavity, although some writers still use the word in its more general meaning. This report records observations on a series of cases of epulis and does not pretend to discuss the proper use of the term or the kinds of tumor that might be included under it. As used here, "epulis" refers to a benign epithelium-covered connective tissue tumor found immediately around the teeth and having its origin in the pericementum or the periosteum of the marginal alveolar process. The tumor will be described from the standpoint of (1) clinical manifestations, (2)