For that reason, during the project of making a variorum for Genji Monogatari that he himself had been engaged in since 1926, he destroyed the notes that he had already composed based upon the manuscripts of the Kawachi-bon line, the very notes that he had once completed in 1931and had even held an exhibition to celebrate.
そのため、1926年（昭和元年）から自身が進めていた源氏物語の校本作成事業において、それまで河内本系統の写本を元に作業を進め、1931年（昭和6年）に一度は完成し、完成記念の展観会まで催された原稿を破棄した。