1. Gould, R. F. (ed.), Contact Angle, Wettability and Adhesion, Adv. Chem. Ser., 43 (Amer. Chem. Soc., 1964).
2. House, W., Shearer, M., and Maroudas, N. G., Expl. Cell Res., 71, 293 (1972).
3. Schonhorn, H., in Progress in Membrane and Surface Science (edit. by Danielli, J. F., Rosenberg, M. D., and Cadenhead, D. A.), 5 (Academic, London, New York, 1972).
4. Abercrombie, M., Heaysman, J. A. M., and Pegrum, S. P., Expl. Cell Res., 67, 359 (1971).
5. Carter, S. B., Nature, 208, 1183 (1965).