1. Claman, H. N., Chaperon, E. A., and Triplett, R. F. Proc. Soc exp. Biol. Med., 122, 1167 (1966).
2. Davies, A. J. S., Leuchars, E., Wallis, V., Sinclair, N. R. S. C., and Elliott, E. V., in Advances in Transplantation (edit. by Dausset, J., Hamburger, J., and Mathe, G.) (Munksgaard, Copenhagen, 1968).
3. Mitchell, G. F., and Miller, J. F. A. P., J. exp. Med., 128, 821 (1968).
4. Mitchison, N. A., Rajewsky, K., and Taylor, R. B., Developmental Aspects of Antibody Formation and Structure (edit. by Sterzl, J., and Riha, I.), 547–561 (Academia, Prague, 1970).
5. Mitchison, N. A., Eur. J. Immun. 1, 18 (1971).