1. Duclaux, D., Pasteur, The History of a Mind, 29 (Saunders, Philadelphia, 1920).
2. Krylov, A. V., and Tarakonova, G. A., Plant Physiol. (Fiziologiia Rostenii), 7, 156 (1960).
3. Hartman, R. T., Plant Physiol., 34, 65 (1959).
4. Pauling, L., and Coryell, C. D., Proc. U.S. Nat. Acad. Sci., 22, 159 (1963).
5. Smith, M. J., and Cook, E. S., Chem. Eng., 44 (1963).