Harley MS 3748, ff 113r-135v

The anonymous Arabo-Latin translation of four different treatises by Galen, all relating to the nature and symptoms of illnesses, and respectively called 'De morborum differentiis', 'De causis morborum', 'De symptomatum differentiis', and 'De symptomatum causis libri tres'. The four works were put together under the collective title of 'Accidenti et morbo' or 'De morbo et accidenti' by Arab translators; thereafter they travelled together in the manuscript tradition. The Latin translation of the collection was probably undertaken in Toledo, and together with De ingenio sanitatis was at the core of the 'new Galen' curriculum in university medical training from the late 13th century onwards.

Rubric (f. 113r): 'Incipit liber .Galieni. de accidenti et morbo .I. ', incipit: [De morborum differentis] 'In inicio huius libri diffini/ri morborum oportet', explicit (f. 116r): 'poterit utique eam perpendere'; rubric (f. 116r): 'incipit particula .ii. de causa [morborum]', incipit: 'In precedenti particula dictum est', explicit (f. 118v): 'morbos generabunt / compositos'; rubric (f. 118v): 'tercia particula de accidenciis / titulata', incipit: 'Quia utrisque particulis / precedentibus', explicit (f. 121r): 'oppilatio erit / morborum'; rubric (f. 121r): 'iiii. particula de causa aaccidencium .I.', incipit (f. 121v): 'In hac particula causam accidencium in/vestigabo', explicit (f. 135v): 'Semper alia sequuntur et eque non. / explicit liber .Galieni. de morbo et accidenti'.

The text is divided into 6 particulae or books, beginning respectively on ff. 113r, 116r, 118v, 121v, 126r, 130v, the last two being in fact subdivisions of the fourth work by Galen: the texts are therefore copied in the order described by R. J. Durling, 'Corrigenda and addenda to Diels' Galenica', I: 'Codices vaticani', Traditio, 23 (1967), 461-76 (p. 467 nos. 64a, 65a, 112a, 113a). With extensive marginal apparatus added by a 15th-century hand.

For the Latin text see L. Thorndike and P. Kibre, A Catalogue of Incipits of Medieval Scientific Writings in Latin, rev. edn. (London, 1963), pp. 684i, 745a, and its electronic version, nos. 684I, 745A; R. J. Durling, 'Corrigenda and addenda to Diels' Galenica', I: 'Codices vaticani', Traditio, 23 (1967), 461-76 (467-468), and II: 'Codices miscellanei', Traditio, 37 (1981), 373-81 (p. 377).

First printed at Venice on 27 Aug. 1490 by Philippus Pincius: for references to the edition see item 1 above, and Richard J. Durling, 'A Chronological Census of Renaissance Editions and Translations of Galen', Journal of the Warburg and Courtauld Institutes, 24 (1961), 230-305 (pp. 287 and 291, nos. 64a, 65a, 112a, 113a). For the Greek text, see Kühn, C. Galeni Opera Omnia (Leipzig 1821-1833; repr. Hildesheim, 1964), VI, pp. 836-880, and VII, pp. 1-272.