1885 Volume 2 Pages 16-24
Journal of the Mathematical Society of Japan
Nippon Sugaku-Buturigakkwaishi
Journal of the Physical Society of Japan
Proceedings of the Physico-Mathematical Society of Japan. 3rd Series
Proceedings of the Tokyo Mathematico-Physical Society. 2nd Series
Tokyo Sugaku-Butsurigakukwai Kiji-Gaiyo