帝国大学第十年報
Records of 50-year History of Imperial University of Tokyo | General Library
彩色寫生輸出百合花集
池田次郎吉編
Agri. Library, UTokyo Collection | Graduate School of Agricultural and Life Sciences / Faculty of Agriculture
教官本籍調 [明治四十一年・四十二年]
Records of 50-year History of Imperial University of Tokyo | General Library
披書懐古(作文)
Yuzuru Hiraga Digital Archive | Kashiwa Library
『第一高等学校一覧』
Yuzuru Hiraga Digital Archive | Kashiwa Library
卒業証書(尋常中学科卒業)
Yuzuru Hiraga Digital Archive | Kashiwa Library