Later on, 300 Japanese and Chinese books were donated on October 16, 1930, and in June, 1938, 739 volumes and 881 traditionally bound Japanese books, which had been passed down in the Saionji family, were donated as well.
その後、昭和5年（1930年）10月16日に和漢書約300冊、昭和13年（1938年）6月には西園寺家伝来の和綴本739部881冊の寄贈が為された。