1. Fleming, A., Proc. Roy. Soc. Biol. Sci. (London), 1922, 93, 306.
2. Fleming, A., Proc. Roy. Soc. Med., 1932, 24 (pathology section), 1.
3. Hesse, W., Z. Hyg. Infekt., 1894, 17, 238.
4. Wilson, A. T. and Rosenblum, R., J. Exp. Med., 1952, 95, 25, 39.
5. Jones, F. S. and Simms, H. T., J. Exp. Med., 1930, 51, 327.