1. Benacerraf, B., Ovary, Z., Bloch, K. J., and Franklin, E. C. (1963). Properties of guinea pig 7S antibodies. I. Electrophoretic separation of two types of guinea pig 7S antibodies. J. Exp. Med. 117: 937.
2. Biozzi, G., Benacerraf, B., Stiffel, C., and Halpern, B. N. (1954). C. R. Soc. Biol. 148: 431.
3. Boyden, S. V. (1962). The chemotactic effect of mixtures of antibody and antigen on polymorphonuclear leukocytes. J. Exp. Med. 115: 453.
4. Cummins, C. S. and Harris, H. (1958). Studies on the cell-wall composition and taxonomy of Actinomycetales and related groups. J. Gen. Microbiol. 18: 173.
5. Cummins, C. S. and Johnson, J. L. (1974). C. parvum, a synonym for P. acnes. J. Gen. Microbiol. 80: 433.