1. Dewar, Nature, 155, 50, 141 (1945).
2. (a) Nozoe and Katsura (Shigeo), J. Pharm. Soc. Japan, 64, 742 (1944). (b) Barltrop and Nicholson, J. Chem. Soc., 116 (1948). (c) Arnstein, Tarbell, Huang and Scott, J. Amer. Chem. Soc., 70, 1669 (1948). (d) Corvett, Hassel, Johnson and Todd, J. Chem. Soc., 1, 6, 147 (1950).
3. (a) Erdtman and Gripenberg, Nature, 161, 718 (1948); Acta Chem. Scand., 2, 625 (1948). (b) Gripenberg, ibid., 2, 639 (1948). (c) Anderson and Gripenberg, ibid., 2, 644 (1948).
4. (a) Cook and Somerville, Nature, 163, 410 (1949). (b) Tarbell, Scott and Kemp, J. Amer. Chem. Soc., 72, 379 (1950). (c) Haworth, Moore and Pauson, J. Chem. Soc., 1045 (1948). (d) Sakan and Nakasaki, presented at the annual meeting of Chem. Soc. Japan, April 2, 1950 (in the press). (e) Caunt, Crow, Haworth and Vodoz, J. Chem. Soc., 1631 (1950).
5. Nozoe, Seto, Kitahara and Kunori, Proc. Japan Acad., 26 (7), 38 (1950). Presented at the annual meeting of the Chem. Soc. Japan, April 2, 1950.