Harley MS 3748, ff 135v-168r

De locis affectis or De interioribus (as commonly entitled in medieval manuscripts), a treatise on differential diagnosis and pathology relating to internal medicine written by Galen at the end of his life (after 192). The Latin translation is the anonymous translation from Arabic sources that enjoyed wide dissemination in the medieval manuscript tradition.

Rubric (f. 135v): 'incipit liber .Galieni. de interioribus', incipit: 'Medicorum non solum / moderni verum etiam / antiqui', explicit (f. 168r): 'Accidencium et morbi que quidem / in loco suo dicemus. / Hoc opus hic finit quod galienus / studiose peregit. / explicit liber Galieni. de interioribus'.

The text is divided into 6 particulae or books, beginning respectively on ff. 135v, 140v, 145v, 151r, 157r, 163r; books 3-6 further subdivided in sections.

Other copies of Galen's text are Royal MS 12 C. xv (ff. 86r-117v) and with anonymous Latin commentary, Harley MS 5425 (ff. 56v-61v, 62r, 91v, 92r-93v). For the Latin text see L. Thorndike and P. Kibre, A Catalogue of Incipits of Medieval Scientific Writings in Latin, rev. edn. (London, 1963), p. 863a, and its electronic version, no. 863A; see also R. J. Durling, 'Corrigenda and addenda to Diels' Galenica', I: 'Codices vaticani', Traditio, 23 (1967), 461-76 (p. 466-467 no. 60a), and II: 'Codices miscellanei', Traditio, 37 (1981), 373-81 (pp. 376-377, no. 60a;); Luis García-Ballester, 'The New Galen: A Challenge to Latin Galenism in Thirteenth-Century Montpellier', in Galen and Galenism (Aldershot-Burlington, Vermont, 2002), V, passim.

First printed at Venice on 27 Aug. 1490 by P. Pincius, see Richard J. Durling, 'A Chronological Census of Renaissance Editions and Translations of Galen', Journal of the Warburg and Courtauld Institutes, 24 (1961), 230-305 (p. 286 no. 60). For the Greek text, see Kühn, C. Galeni Opera Omnia (Leipzig 1821-1833; repr. Hildesheim, 1964), VIII, pp. 1-452.