Record General Colour ConText ID: REC:2625Original language: Latin transl_trans Transcription THEOPHILI LIBER J, CAPUT IX. DE LUMINA SECUNDA. ET si facies tenebrosa fuerit ut ei non sufficiat una lumina, adde ei amplius de albo et super priorem linies subtiles tractus per omnia. Source Library/ Place of edition Title Year Starting date End date Display order London, British Library Harley 3915, Schedula diversarum artium (De diversis artibus, Theophili Monarchi, de Chemia, Medicis praeparationibus, Mineralibus, & plurimis raris inventionibus, libri 3) XIIth (2H.) XIIIth (1H.)