1. 1) Presented before the 4th Annual Meeting of the Chemical Society of Japan, April 7, 1951.
2. (a) Science of Drugs, 3,174 (1949).
3. [English Translation: Sci. Rep. Tohoku Univ. 34 (1950), in press.] (b) Proc. Japan Acad. 26 (9) 30 (1950).
4. 3) T. Nozoe, E. Sebe, and S. Ebine, Proc. Japan Acad., 26, (8) 24 (1950).
5. 4) T. Nozoe, T. Mukai, and S. Matsumoto, Proc. Japan Acad., 27, 110 (1951).