抄録
In 2016, I and Mr. Yoshimitsu Yamazaki, a faculty member of Akita University, were selected for the Grants-in-Aid for Scientific Research. Since then, we have been jointly researching the old collection of author Ango Sakaguchi. The collection is now carefully preserved at Niitsu Art Museum and is a valuable archive. Ango wrote notes in those books, which is very interesting. However, in recent years we have not been able to investigate the archive due to the COVIT-19 epidemic. So we have managed to carry out our research by prioritizing data organization. This paper is an interim report on the characteristics of the collection and the writing method of Ango, which were clarified by the research.
https://ror.org/01ta2g450 
