1. Abramson, H. A., Electrokinetic phenomena. VI. Relationship between electric mobility, charge and titration of proteins. Journ. Gen. Physiol.15, 575–603, 1932.
2. Clark, W. M., The determination of hydrogen ions. Third edition, Baltimore, 1928.
3. Fisher, R. A., Statistical methods for research workers. Second edition, Edinburgh and London, 1928.
4. Komagata, S., On the measurement of cataphoretic velocity by the microscopic method. (Japanese). Journ. Chem. Soc. Japan53, 342–348, 969–970, 1932.
5. Moyer, L. S., Species relationship inEuphorbia as shown by the electrophoresis of latex. Amer. Journ. Botany21, 293–313, 1934.