1. 1) Paper presented at the Annual Meeting of the Chemical Society of Japan, in Tokyo, April, 1955, and in Kyoto, April, 1956.
2. 2) T. Nozoe, S. Matsumura, Y. Murase, and S. Seto: Chem. & Ind., 1955, 1257.
3. 3) Since the data regarding out-of-plane vibration of C-H are being accumulated, the position of substituents on the seven-membered ring can now be predicted to a certain extent from the wave numbers of such vibration. Separate reports on this question will be made later.
4. 4) A. Müller: Dissertation (E. T. H. Zurich), Prom. Nr. 2010 (1951).
5. 5) F. Šorm and J. Hlavnicka: Chem. Listy, 45, 409 (1951).