1. Mark and Meyer, Z. f. physikal. Chemie, B, 2, 115; 1929.
2. Andreas, Z. f. physikal. Chemie, 122, 26; 1926. Burgeni and Kratky, Z. f. physikal. Chemie, B, 4, 401; 1929.
3. Hengstenberg and Mark, Z. f. Krist., 72, 301; 1929.
4. Astbury (sucrose) and Marwick (mannose). Unpublished results obtained in the Davy Faraday Laboratory of the Royal Institution.