Besides that, he created a detailed word-and-phrase index of The Tale of Genji, using the completed recension, and made it the 'book of index.'
また、完成した校訂本を使用して源氏物語の詳細な字句索引を作成し、それを「索引編」とした。 - Wikipedia日英京都関連文書対訳コーパス
Until about the early fifteenth century, all 40 volumes of Nihonkoki History Book were in existence, but eventually certain volumes were dispersed and lost; however, Yukinori INAYAMA, one of the disciples of Hokinoichi HANAWA, found 10 volumes of the manuscript at the residence of the Sanjonishi family and published them for the first time (There is an opposing view that the published volumes were based on Norimitsu/Motomitsu YANAGIHARA's recension.).
15世紀初め頃までは40巻揃っていたが、その後散逸し、塙保己一の門人、稲山行教が10巻分の写本を三条西家で発見(異説として柳原紀光の校訂本説もある)し、初めて刊行された。 - Wikipedia日英京都関連文書対訳コーパス