Genchū Yoteki (源註余摘) is a commentary on The Tale of Genji by the Edo period kokugaku scholar Ishikawa Masamochi.
It criticizes earlier Edo commentaries by Keichū and others, based on Masamochi's original linguistic scholarship.
Ishikawa Masamochi's commentary on The Tale of Genji, Genchū Yoteki, is in 54 books divided between 20 volumes.
[1] In addition to collecting and commenting on earlier scholars' research, he provides his own original analysis based on copious examples.
[1] Hiroshi Yoshioka [ja], in his article on the Genchū Yoteki for the Nihon Koten Bungaku Daijiten, praised it as showing a clear critical eye that builds on a broad scholarly basis.