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Volume 62,1962 The Boat Form in Six-Membered Rings. By M. Balasubramanian. The following important reference was omitted. It is a review with 89 references. Boat Form in Equilibria and Reactions of Sixmembered Rings. Levisalles, J., Bull. 8oc. chim. France, No. 3, 551 (1960).