between 1908 and 1914 he sent more than 2,000 objects (including archaeological ceramics, metalwork, shells, bones and stone tools; musical instruments, buddhist objects and ainu material) to the royal scottish museum (today's national museum of scotland) in edinburgh. he authored several volumes, among them "coins of japan" (1904), "prehistoric japan" (1908), and "ainu creed and cult" (with h watanabe & b z seligman, 1962).