He also became a disciple of a herbalist Jakusui Ino to study herbalism, after he found difficulties for understanding the names of animals and plants described in Chinese poetry book, 'Shikyo.'
しかし中華人民共和国の詩編「詩経」に出てくる動植物の名の理解に苦しみ本草学者稲生若水の門に入り本草学を学んだ。