In this thesis, I will discuss the correlation between reeditions of the ninety-five volume version of the Shōbōgenzō 正法眼蔵 edited by Kōzen 晃全. There are several texts that are considered in this thesis: The Shōbōgenzō copied by Ryūjō Gyokutan 龍定玉潭 (?–1772), the books owned by Katsudō Honkō 瞎道本光 (1710–1773), and the Shōbōgenzō Kyakutaiichiji san 正法眼蔵却退一字参 (Sanchū 参註) written by Katsudō. The relationships between the books owned by Katsudō and his own work Sanchū has already been studied by other scholars; the relationships between those books and the Shōbōgenzō copied by Gyokutan, however, have not yet discussed. Therefore, by considering these books as source texts, I would like to explore the character of the Shōbōgenzō as copied by Gyokutan and interaction between scholars of the original Shōbōgenzō in the middle of Edo period.
In order to prove that those three books have deep relationships, I have considered a number of points: the friendship between Gyokutan and Katsudō, a wood-printed picture of Dōgen 道元 (1200–1253), the written postscript by Dōgen, and the texts of the Shōbōgenzō. First, the relationship of Gyokutan and Katsudō is clearly observed from the fact that Katsudō’s master Shigetsu Ein 指月慧印 (1689–1764) has a deep connection with Ryūkaiin 龍海院 and Gen’eiji 源英寺, where Gyokutan served as a chief priest. In addition, the range of works by Gyokutan and Katsudō overlap at various points. Second, the wood-printed picture of Dōgen in the beginning of the Shōbōgenzō copied by Gyokutan is also seen in the three copies of the books that were owned by Katsudō. Furthermore, in the Sanchū, three quotations from the written postscript by Dōgen can be seen, that are also found in the Shōbōgenzō copied by Gyokutan. The textual amendment from the Shōbōgenzō copied by Gyokutan is done based on the texts from the books owned by Katsudō.
To conclude, judging from the both priests’ relationship, there is a high possibility that the re-edition of the Sanchū was done based on the Shōbōgenzō copied by Gyokutan, and the reedition of the Shōbōgenzō copied by Gyokutan was done based on the book copied by Katsudō.
