1. Wright, A. E., and Douglas, S. R., Proc. Roy. Soc., B, 72, 357 (1904).
2. Moss, W. L., Johns Hopkins Hosp. Bull., 18, 237 (1907).
3. Rowley, D., Adv. Immunol., 2, 241 (1962).
4. Boyden, S. V., North, R. J., and Falkner, S. M., in Complement, Ciba Foundation Symp. (edit. by Wolstenholme, G. E. W., and Knight, J.) (Churchill, London, 1965).
5. Wright, A. E., and Colebrook, L., in Technique of the Teat and Capillary Glass Tube (Constable, London, 1921).