Reviews : Claus-Peter Clasen, Anabaptism. A Social History, 1525-1618, Ithaca and London, Cornell University Press, 1972. 523 pp. £7.90. H. C. Erik Midelfort, Witch Hunting in Southwestern Germany, 1562-1684. The Social and Intellectual Foundations, Stanford, Stanford University Press; London, Oxford University Press, 1973. 306 pp. £5.75. Steven E. Ozment, Mysticism and Dissent. Religious Ideology and Social Protest in the Sixteenth Century, New Haven and London, Yale University Press, 1973. 270 pp. £4.25