1. Berkeley, M. J., J. Hort. Soc., 1, 9 (1846). (Reprinted in “Phyto pathological Classics”, No. 12, 1948).
2. Zakon, S. J., and Benedek, T., Bull. Hist. Med., 16, 165 (1944), give English translations of Gruby's papers.
3. Tortonese, E., Endeavour, 7, 92 (1948).
4. “Opere di Agostino Bassi” (Pavia, 1925).
5. Major, R. H., Bull. Hist. Med., 16, 97 (1944).