1. Logical revival and Schools: M. Gibson, ‘The Continuity of Learning circa 850-circa 1050’, Viator, vi (1975), 1–13, is a most useful review of school studies in a neglected period;
2. see also M. Gibson, ‘The Artes in the Eleventh Centuiry’, in Arts Libéraux et Philosophie au Moyen Age (Actes du IVème Congres International de Philosophie Médiévale; Montreal; Paris, 1969) and, a localised treatment
3. L. M. de Rijk, ‘On the Curriculum of the Arts of the Trivium at St Gall from c. 850–c. 1000’, Vivarium, i (1963),35–86.
4. R. L. Benson and G. Constable, with C. D. Lanham, eds, Renaissance and Renewal in the Twelfth Century (Oxford, 1982), contains a number of pertinent essays, some of which are specially noted below. On the character of medieval logic in both the central and high periods there is a substantial bibliography, for which see the bibliographical aids cited in section 1
5. and note T. Gilby, Barbara Celarent. A Description of Scholastic Dialectic (London, 1949)