Harley MS 3748, ff 24v-42r

The anonymous Latin translation from Arabic sources of Galen's treatise on astral influences on the critical points on an illness, called 'De criticis diebus' or 'De diebus decretoriis'. In the manuscript tradition the translation was occasionally attributed to Gerardus Cremonensis (circa 1114-1187), and this attribution is accepted in Luis García-Ballester, 'The New Galen: A Challenge to Latin Galenism in Thirteenth-Century Montpellier', in Galen and Galenism (Aldershot-Burlington, Vermont, 2002), V, p. 69 n. 78.

Rubric (f. 24v): 'Incipit liber .Galieni. de creticis diebus', incipit (f. 25r): 'Et egritudinum que / non paulatim mi/nuuntur', explicit (f. 42r): 'Et iam quidam venimus / ad finem libri auxilio dei et eius / adiutorio. Completus est tracta/tus tercius tractatus [cancelled] libri .Galieni. de / creticis diebus deo gratias in / explicit'. The text is divided into 3 particulae or books, beginning respectively on ff. 25r, 32r, 38r. For the Latin text see L. Thorndike and P. Kibre, A Catalogue of Incipits of Medieval Scientific Writings in Latin, rev. ed. (London, 1963), p. 1617j, and its electronic version, no. 1617J; R. J. Durling, 'Corrigenda and addenda to Diels' Galenica', I: 'Codices vaticani', Traditio 23 (1967), 461-76 (p. 465), and II: 'Codices miscellanei', Traditio, 37 (1981), 373-81 (pp. 374-75).

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 (p. 284 no. 39a). For the Greek text see Kühn, C. Galeni Opera Omnia (Leipzig, 1821-1833; repr. Hildesheim, 1964), IX, pp. 769-941.