Lectures on the Comparative Pathology of Inflammation, Elie Metchnikoff, translated from the French by F. A. Starling and E. H. Starling, with a new introduction by Arthur M. Silverstein, New York, Dover Publications, 1968.Immunity in Infectious Diseases, by Elie Metchnikoff, translated by F. G. Binnie, reprinted with a new introduction by Gert H. Brieger, New York and London, Johnson Reprint Corporation, 1968, pp. xxxi, xvi, 591, illus., $25.00.