1. Bailey K. (in press).
2. See, for example, Astbury, W. T., J. Chem. Soc., 337 (1942); Astbury W. T., and Dickinson, S., Proc. Roy. Soc., B, 129, 307 (1940)
3. Rudall K. M. (to be published).
4. See, for example, Astbury, W. T., "X-rays and the Stoichiometry of the Proteins" in Vol. 3 of "Advances in Enzymology", pp. 63–108 1943
5. Katz, J. R., and de Rooy, A., Naturwiss., 21, 559 (1933) Rec. trav. chim. Pays-Bas, 52, 742 (1933); Katz, J. R., "Die Röntgen-spektrographie als Untersuchungsmethode" (1934), p. 183.