During the four-year period from 1954 to 1958, a roentgenological and morphological study of the paranasal sinuses in Koreans, especially of the frontal and maxillary sinuses, was made. In these studies, postero-anterior and lateral radiograph, life-size, of the normal frontal and maxillary sinuses were measured to obtain standard values for the Korean peop1e, together with their sex ratio, age distribution, and septal features of the sinuses.