ORIKUCHI's theory of marebito took its shape in 'Kokubungaku no Hassei, Dai Sanko' (The Origin of Japanese Literature, the Third Manuscript) (included in "Kodai Kenkyu" (Ancient Studies)).
折口のまれびと論は「国文学の発生＜第三稿＞」（『古代研究』所収）によってそのかたちをととのえる。